The National Science and Technology Fair organised by Coimbatore District Small Industries Association (Codissia) drew to a close on Saturday, with six exhibits of school and college students bagging cash awards.
In the ‘Colleges’ category, PSG College of Technology, Coimbatore, won the first place with a cash award of ₹ 50,000. Kongu Arts and Science College, Erode, and KPR Institute of Engineering and Technology, Coimbatore, won the second and third prizes, with cash awards of ₹ 40,000 and ₹ 30,000 respectively.
Delhi Public School, Coimbatore, came first in the ‘Schools’ category, and won a cash award of ₹ 25,000. Bannari Amman Public School, Sathyamangalam, and Vadanta International School, Jaipur, Rajasthan, came second and third, winning ₹ 20,000 and ₹ 15,000 respectively.
source: http://www.thehindu.com / The Hindu / Home> News> Cities> Coimbatore / by Staff Reporter / Coimbatore – August 31st, 2019
Girl power: Social Relay, the team which won the Technovation challenge.
‘Baton’ designed to maximise the impact of initiatives started by interns in the field of social work.
‘Social Relay’, a team of three school girls from Chennai, bagged the first place at Technovation Girls organised in the United States of America by Technovation, a global not-for-profit organisation that focuses on technology education. The team won a prize money of $12,000.
The team members — Akshara Vasanth, a Class VI student of PSBB School K.K. Nagar, Ishwarya Kanagaraj, a Class VII student from the Panchayat Union Middle School Poothapedu and Stella Arokiasamy, a Class IX student of Our Angel Matriculation School — were mentored by Tanya Elizabeth Ken, a Class XI student of Kola Perumal Chetty Vaishnav School. Both Stella and Aishwarya stay at Paadhai, a home in the city for destitute children.
At the World Pitch 2019, the finals, Social Relay pitched their app ‘Baton’, which was designed to maximise the social impact of initiatives started by social work interns or students’ internships. “The app works around the idea of a relay race, where the baton is handed over and aims to hand over incomplete social work initiatives from one intern to another so that they are not affected by internships which last only for a limited time. It will bring together social workers, students, corporates, NGOs and volunteers,” the team said.
Dreaming big
Speaking from California, Akshara Vasanth said she was thrilled with her team’s win. “This is not just a great opportunity for me, but for girls from across the world. We are looking forward to develop our app further and take it across the country as well as the world,” she said.
The team from Chennai was among six from across the world in the junior division at the World Pitch, which was the final event of Technovation Girls, where they exhibited the functioning of their apps. Over 2,000 teams from 57 countries participated in the competition and six teams each were selected as finalists in the junior and senior division.
“Lack of a social worker empowerment tool is a problem across the world and the team believes that Baton is the solution, as it brings together key stakeholders for achieving social impact, while optimizing social work,” said Tanya, speaking from California.
“I hope more girls are inspired and encouraged to delve into technology and innovation,” she added.
The program encourages girls between the ages of 10 and 18 years from across the world to use technology and apply the skills needed to solve real life problems.
source: http://www.thehindu.com / The Hindu / Home> News> Cities> Chennai / by Staff Reporter / Chennai – August 19th, 2019
These self-professed nerds would take on topics of international relations and economics over sports and pop culture any day.
The champions of this year’s World Schools Debating Championships with PR Venketrama Raja, chairman of RAMCO and his wife PV Nirmala | D SAMPATHKUMAR
It was India all the way at the World Schools Debating Championships (WSDC) 2019 in Bangkok. The five-man team fielded by the country won the championship and one of the team-members, Chennai’s Tejas Subramaniam, went on to be crowned the ‘best speaker in the world’.
A proud mother Vinutha Subramaniam said she was among those who had given up debating with him as he already was the best speaker in the family.
“After one point he knew too many things. So, we couldn’t debate with him. He started speaking quite early and by the time he was 1, he could speak complete sentences. At around 2, he would speak a sentence in Tamil and be able to repeat it in English so much so that we would call him ‘Major Sundarrajan’ (after a famous Tamil actor),” Vinutha said.
The team, which also included Bhavya Shah, Manya Gupta, Saranya Ravindran and Prithvi Arun, had already prepared 140 motions before the championships with the help of their coaches Dhruva Bhat, Sayeqa Islam and Dhananjay Ashok among others.
“There was not a single topic that we were baffled by,” said Saranya, a student of Padma Seshadri Bala Bhavan Senior Secondary School in Chennai.
The team might have made giant strides this year, but proving their mettle on the global debating circuit was an experience in itself.
“Because we are accented, sometimes I think we are not understood. Like, for example, when the judges give us our feedback, they tell us you made a new argument in your third speech when we clearly made it in our earlier speeches too,” Tejas, who like Saranya studies in Padma Seshadri Bala Bhavan Senior Secondary School, said.
First visually impaired speaker to debate in the final
Bhavya, a student of Rao Junior College of Science in Mumbai, the team’s ‘Funny guy’, became the first visually impaired speaker to debate in a WSDC final and to make it among the top 10 speakers.
He was named the sixth best speaker in the world.
Bhavya shared some of his most memorable moments.
When debating against Canada opposing the motion “This House would ban the practice of ‘importing brides’, Canada’s argument was that if importing brides were to be legalised, other refugees would be affected because of the opportunity cost,” Bhavya said.
“So, I argued that this was an argument against any other form of immigration. What if team Canada so decides, ‘we don’t want Indians coming into the country because they’re better at debating than we are?’,” he said.
Point made, the team went on to win defeat the Canadians 3-0.
It was Canada whom they defeated in the final also, proposing the motion “This house regrets the glorification of soldiers as heroes”.
source: http://www.newindianexpress.com / The New Indian Express / Home> Good News / by Express News Service / August 03rd, 2019
Students of Buchireddy Palli Government School with their invention — a walking stick with sensors. | Photo Credit: B. Jothi Ramalingam
The students of Buchireddy Palli Government School have been winning accolades for their clever innovations aimed at saving lives
It is morning in Maddur, a little village nestled in the valley of the lush Tiruttani hills in Tamil Nadu. I make my way past the railway crossing that looks straight out of an R.K. Narayan story and climb into a rickshaw. It takes me past houses with decorative pillars and thinnais(porches) of old-fashioned houses. As the auto sputters down, I hear the rattle of power looms — the main occupation in Maddur is weaving.
Maddur, of late, has earned a new distinction. The students of Buchireddy Palli Government School have been winning accolades for their clever innovations aimed at saving lives and improving the lives of people with disability. Maddur has few streetlights, and many pedestrians fall prey to road accidents. So Class X students S. Parthiban and V.M. Akashwaran came up with ‘e-slippers’.
The footwear operates on the principle of piezo-electricity and has LED strips that light up when the user walks. Rechargeable lithium-ion batteries, which charge devices like mobile phones, are connected to the slippers.
The duo has also come up with a multi-purpose walking stick with sensors that can detect hazards such as fires or floods.
The Buchireddy Palli Government School is an austere, three-storied building that houses both English and Tamil medium departments from classes VI to XII. When I get there just before lunch break, I spot some bright-eyed children sneaking out of their classrooms. Science teacher R. Dharmalingam, has nothing but appreciation for his students. “They are self-driven, curious and never afraid to ask questions,” he says.
“Most of their projects are self-funded, but the headmaster has also helped. I have sat with them after school hours to encourage them.” The school’s involvement is obvious. Dharmalingam accompanied Akashwaran and Parthiban when they showcased their work at the Southern India Science and Technology Fair in Bengaluru.
Out of the box
At Akashwaran’s house, we are greeted with effusive hospitality. Akashwaran and his friend Gunasekaran, still in their uniforms, are poring over a cardboard model. I ask them what they are working on. “This is a gliding platform meant for people with disability or the elderly so that they can cross railway platforms without having to use the overbridge,” Akashwaran tells me. The two then demonstrate the working model.
Students with a model of a gliding platform for the elderly cross tracks | Photo Credit: B. Jothi Ramalingam
Akash thought of this when I complained about the climb at the station. Since then he’s been trying to figure out a workable solution,” beams his mother Vatsala.
“It used to be based on hydraulic motion but I changed it to a motor-based system. The platform will move forward when the switch is pressed. IR sensors will detect approaching trains and the platform will then retreat,” Gunasekaran explains. They have even thought about warning systems — a buzzer sound to alert the blind and a flashing red light for the deaf.
M.N. Haripratap is in Class IX in the same school. He has designed a bridge model where the structure opens up during high tide to allow ships to pass and then folds back again. It won him a district-level prize from the Chief Education Officer of Thiruvallur district.
The students’ love for science and innovation is apparent. “Akash took part in a science exhibition at Sri Krishna Polytechnic and was fascinated by what he saw,” says Vatsala. Interested in electronics, programming and robotics, he recently received a special prize for excellence in science from Anna University, Chennai, during its tech fest, ‘Kurukshetra’. He was also awarded a token of appreciation by former ISRO director Mylswamy Annadurai.
“I want to be a scientist,” says Akash. “Abdul Kalam has always been a role model for me.” I ask him what’s next on the agenda. His small, serious face lights up as he talks of solar-powered cycles, ambulance-sensitive speed-breakers, and earthquake-sensing fences.
Whatever the students of this special school do next, I know they will put Maddur on the map with their thoughtful, people-focused innovations.
The writer is a civil engineer and dog lover with a nose for music and art.
source: http://www.thehindu.com / The Hindu / Home> Sci-Tech> Environment – Young Minds / by Gayatri Ramdas / August 03rd, 2019
She was also one of the first women doctors in India and the first woman house surgeon in the Government Maternity Hospital, Madras
Today’s Google Doodle celebrated Dr. Muthulakshmi Reddi, a surgeon, educator, lawmaker and social reformer, on her 133rd birth anniversary. Dr. Reddi devoted her life to public health and fought the battle against gender inequality. The Government of Tamil Nadu announced on Monday that government hospitals in the State will celebrate her birth anniversary as ‘ Hospital Day ‘ every year .
Born in 1886 in Pudukkottai, Tamil Nadu, Dr. Reddi was the first Indian girl student in the Department of Surgery at Madras Medical College. This was just one of her many firsts. She became one of the first women doctors in India in 1912, and the first woman house surgeon in the Government Maternity Hospital, Madras.
She co-founded the Women’s Indian Association in 1918, and as the first woman member (and vice president) of the Madras Legislative Council — making her the first woman legislator in India — she helped raise the minimum age for marriage for girls and pushed the Council to pass the Immoral Traffic Control Act, and the Devadasi system abolishment Bill.
She resigned from the Council to support the Salt Satyagraha. When three young devadasi girls knocked on her door in 1930, she established the Avvai Home to shelter and educate girls like them.
In 1954, she opened the Cancer Institute in Chennai and in 1956 was awarded the Padma Bhushan. She passed away in 1968 at the age of 81.
Here is Dr. Reddi herself on the role of women in an article published in the August 15, 1947 Independence Day edition of The Hindu:
“Indian women have a great role to play in the modern world, with its chaos and rumblings of another war. With their background of philosophy and religion, with their apprenticeship under Gandhian leadership, with the sense of motherhood strong in them they can be and should be the ambassadors of love, peace and unity. It is the Gandhian concept of non-violence alone that can save the world from a cataclysm. And it is the women of India alone who can carry the message best so that the world may come together in unity and peace.”
The Doodle showing Dr. Reddi guiding young girls and women was created by Bangalore-based guest artist Archana Sreenivasan. The Doodle page also displays other early concepts drawn by the artist for this occasion.
source: http://www.thehindu.com / The Hindu / Home> News / The Hindu Net Desk / July 30th, 2019
Elon Musk with the students team from IIT-Madras’ Avishkar Hyperloop
Avishkar Hyperloop from IIT-Madras met the SpaceX founder at this year’s hyperloop pod competition
Student innovators from IIT-Madras won tech entrepreneur Elon Musk’s admiration with their design of a hyperloop pod at a SpaceX organised competition in Los Angeles.
Avishkar Hyperloop, which was incubated at the Centre For Innovation at IIT-M, was the lone Asian team selected to enter the SpaceX Hyperloop Pod Competition 2019 last month. Hyperloop is a proposed transportation concept of a network of vacuum-sealed tubes which can, theoretically, ferry people at great speeds sans air friction. The competition was held in Los Angeles last weekend with team members of Avishkar earning the opportunity to interact with Musk, founder-CEO of Space X, and Josh Geigel, co-founder of Virgin Hyperloop One.
One of the team members, Pranit Mehta, took to Twitter to share their experience. “Pleasure to have met and interacted with @elonmusk at the @SpaceX @Hyperloop Pod Competition 2019! Also, a wonderful experience for Team @avishkar_loop , the only Asian Finalist there! (sic),” he tweeted.
Avishkar was tasked with developing an indigenous design to build the first-ever self-propelled, autonomous Hyperloop Pod in India. They were among the 21 teams selected from a total of 1,600 applicants globally to participate in the competition.
Prior to the competition, team Avishkar was invited to visit the Los Angeles headquarters of Virgin Hyperloop One. “The @iitmadras @avishkar_loop student hyperloop team stopped by our Los Angeles headquarters to learn more about our progress in India. Always encouraging to see the next generation of thinkers embracing this transformative technology! (sic),” read a tweet by Virgin Hyperloop One.
The competition was, however, won by the team from Technische Universität München (Technical University of Munich), whose pod set a speed record of 463 kilometres per hour.
source: http://www.thehindu.com / The Hindu / Home> Sci-Tech> Science / by Pradeep Kumar / July 24th, 2019
These students devote three-four hours every day after college and now their work has come to fruition as they have raised `1 crore from sponsors and finally built a pod and a 40-metre test track.
Bengaluru :
At an event hosted by Atria Institute of Technology on Tuesday, aerospace engineering student from IIT Madras, Sai Madhav, presented his team’s prototype pod for the SpaceX Hyperloop Pod competition to his audience.
Avikshar Hyperloop is one of the 22 teams out of the 1,600 teams worldwide and also the only team from Asia that has qualified to the finals. It is a group of about 30 students from inter-disciplinary backgrounds who have been working on creating their own pod since September 2017. These students devote three-four hours every day after college and now their work has come to fruition as they have raised `1 crore from sponsors and finally built a pod and a 40-metre test track.
SAE India, a member-driven organisation which acts as a knowledge partner for students and faculty in automotive and aerospace engineering, hosted its second event in its lecture series that deals with aerospace engineering. It also functions as a think-tank and a policy maker. The second lecture was specifically about the Hyperloop, an almost too-good-to-be-true transportation service proposed by Elon Musk, CEO of SpaceX and Tesla. The Hyperloop, if installed, seeks to reduce travel time drastically. It is supposed to be a land-based transportation service where pods, that house passengers, can levitate and zoom through tunnels by having the air pumped out of them in order to create a near-perfect vacuum for greater speed. It boasts of a travel time of just 30 minutes from Bengaluru to Chennai.
Being the main speaker at the event, Madhav’s presentation and video of the only Indian team to qualify for this competition impressed a mixture of faculty, students and heads of the SAE group. He also talked about how the plan for building their pod looked solid on paper but when it came to the actuality of making it, they faced a lot of discrepancies. Being in the stability team, he deals with a lot of mechanical aspects of the pod. During the question-and-answer session, the question of the safety of the passengers was raised as the Hyperloop project has bragged about reaching speeds up to 500-600 km/hour. “Yes, passengers will feel major deceleration effects. All this is new and I can only hope that newer research yields positive results,” he said. J Munirathnam, who is on the Board of SAE India for aerospace, also said the project will have to be built after taking into consideration the degree of g-force that the human body can withstand.
“This is completely new. We have the freedom to explore it. If you look at building a car, parameters have already been established for it. That is not the case here,” Madhav said.
The hype about hyperloop
The Hyperloop, if installed, seeks to reduce travel time drastically. It is supposed to be a land-based transportation service where pods, that house passengers, can levitate and zoom through tunnels by having the air pumped out of them in order to create a near-perfect vacuum for greater speed.
source: http://www.newindianexpress.com / The New Indian Express / Home> Cities> Bengaluru / by Chinmay Manoj / Express News Service / July 11th, 2019
Mobile eye: The electrically-powered robot runs on four wheels connected using a conveyor belt and is tethered at one end.
Endobot is a low-cost solution to identify faults and stealthy connections
At a time when water scarcity pervades many urban centres, it is important to ensure that water being transported through pipes is not lost through leakages. In an attempt to address this issue, researchers from IIT Madras have developed a robot to check pipelines for leaks and other faults. Named Endobot, this robot is to be marketed by an IIT Madras incubated startup, Solinas Integrity, founded by the researchers.
Quite often, pipes that transport water suffer from low maintenance and neglect which causes them to develop leakages. These often go unnoticed except when the water seeps to the surface. Periodically, water pipelines are dug up, and this may bring leaks to notice, but this is left to chance and is a costly process at best. Water is also lost through connections that have not been sanctioned officially. Endobot is presented as a solution that can identify these faults and stealthy connections, at a low cost.
The electrically-powered robot looks like a small tank, runs within the pipe on four wheels connected using a conveyor belt. It is tethered to the entry point outside the pipe. This construction allows it to run over tough terrain within the pipe without stalling. “Endobot is about 6 inches high and can study any pipe having a diameter more than 8 inches. Since water pipes typically have an inner diameter of at least 15 inches, it suits the purpose well,” says Prabhu Rajagopal from the Centre for Nondestructive Evaluation in IIT Madras, where the robot was developed. He is also a non-executive director of the company.
“As the robot, which is electrically powered, runs through the pipes at about 15 cm per second, it captures videos and transmits a live feed to the base at the entry point. It also uses laser-based techniques to examine the pipes as it moves,” explains Vishwa Sai Prathyusha, who is the Chief Technology Officer of the company and alumna of IIT Madras. These feeds are conveyed to the user’s computer and may be analysed later using software developed by the team.
“Of course, the robot has noteworthy features, but also the software and tools for analysis developed by our team give us a major advantage over competition,” adds Ms Prathyusha.
Additional sensors
Any technology goes through phases of development and Endobot is no exception. “As a next step, we plan to add more sensors – ultrasonic and electromagnetic – which can help us find out whether the pipes develop corrosion or cracks on the outer side,” says Krishnan Balasubramanian, a director of the company. He is a chair professor in the Mechanical Engineering department of IIT Madras and head of the Centre for Nondestructive Evaluation.
“As of now, not many people are working on such small robots,” says Prof. Rajagopal. He acknowledges, however, that there is competition at an international level. “Having small robots is a novelty even there, and open source electronics is driving this here,” he adds. So while such robots may not be out of reach of international companies, they still have not focused on such solutions. “Recently, the Indian government and corporations and municipalities are increasingly looking at outsourcing operation and management of water resources to private players, and we are in a sort of Goldilocks zone,” says Prof. Rajagopal.
The team has already completed one set of trials within IIT Madras campus, where many pipes and installations are nearly 40 years old. They are now in talks with various urban corporations to allow them to try out the robot. Some municipalities have expressed interest in pilot studies using the robot.
source: http://www.thehindu.com / The Hindu / Home> Sci-Tech> Science / by Shuhashree Desikan / May 04th, 2019
The inventor is a retired Madras University professor Venkatesan Kaviyarasan and his PhD student J Manjunathan.
Lentinus tuberregium, which has anti-cancer properties | Express
Chennai :
Globally, millions of dollars are being spent on cancer research and for decades, scientists have been gathering information on bio-active compounds exhibiting anti-cancer properties from different sources. In India, for the first time, a patent has been issued for extracting anti-cancer compounds from a wild mushroom variety found in Western Ghats of Tamil Nadu.
The inventor is a retired Madras University professor Venkatesan Kaviyarasan and his PhD student J Manjunathan. The university had applied for the patent in 2012 and after rigorous scrutiny, got it on March 11 this year. The mushroom variety from which the research team has isolated the anti-cancer compounds is lentinus tuberregium, which is an edible variety valued for its high nutritional composition. However, the major limitation to its availability and utilisation is that it is seasonal in nature.
Professor Venkatesan Kaviyarasan of Madras University during his research trip to Kolli Hills;
Speaking to Express, Kaviyarasan said his team has carried out extensive studies on mushroom biodiversity since 1960s. They had successfully catalogued over 700 mushroom varieties, bio-documenting the edible ones with highly nutritive attributes, and studying medicinal mushrooms from the 1990s.
“In the 1970s, a Japanese mushroom, lentinus edodes, well known as Shitake mushroom, proved to exhibit anticancer activity and the same was later approved by the FDA of USA. In the year 2000, some of my associates were able to collect various lentinus samples from the Kolli Hills of the Eastern ghats and Kanyakumari forests of the Western Ghats.
Both nutritional and medicinal properties were documented. Of these, more than 8 bio-active compounds were identified and the anti-cancer properties of some of them were confirmed by studies against suitable anticancer cell lines. Of these, two compounds, namely LT1 and LT 2 extractable from an edible mushroom, lentinus tuberregium have been duly patented for the extraction protocols for the anti-cancer cell line of breast cancer,” Kaviyarasan said in an interview, while urging the university and his students to take the research forward.
Kaviyarasan, who recently suffered stroke and is recovering, is still enthusiastic about his work, and rued the fact that in India, research on medicinal properties of mushrooms is at an infant stage, while countries like China, Japan and other eastern countries are progressing at faster rate. He alleged that British rulers have suppressed the traditional knowledge that the native Indians possessed and eventually promoted only the allopathy medicine. Further, our pioneers failed to record most of the information available to them.
However, for centuries, Indians are believed to have consumed many different mushroom varieties as food. These include the straw mushroom (volvariella valvaceae), oyster mushroom (pleurotus) and marakkalan (lentinus). In the year 1912, Dr T Petch, the then Director of the Botanical Gardens at Kandy in Sri Lanka, visited Tamil Nadu and found some local inhabitants in the Tanjore belt collecting some material from mushroom bases under termite mounds known as Putru Manga in the local dialect and traditionally used by pregnant women just before child birth in order to prevent pneumonia.
The information was published in the Annual Review of the Botanical Garden. Even today, the ‘Arisi Kalan’ (termitomyces microcarpus) and ‘Putru Kalan’ (termitomyces heimi) varieties are sold in the local vegetable markets of Tirunelveli and Thiruvananthapuram.
Gordon Wasson, a mushroom researcher, visited India and gathered information from many Vedic pandits in Kasi and Pune. Based on the knowledge acquired from Rig Vedic literature on Soma Banam, which is nothing but an extract from mushroom amanita muscaria, a book entitled Soma: Divine Mushroom Immortality was published. In this book, the author explained the effects of hallucination and immortality that this extract offers on its consumption. After this book was published in 1968, several international research articles have been published on this subject.
Co-inventor J Manjunathan said a project proposal has been forwarded to Department of Science and Technology (DST) to carry forward the research. He said lentinus tuberregium mushroom can be commercially cultivated and he was ready to help the farmers.
The Kaani tribe in Kanyakumari forests are known to use mushrooms in their daily diet. Field trips and personal interviews with tribal people reveal extensive usage of mushrooms. “Tribal people collect mushrooms early in the morning in bamboo or reed baskets. The collected mushrooms are cleaned in fresh water twice or thrice and slightly pounded in wooden mortar with an equal amount of rice. Then, both are boiled with a little water, spices, salt and wild green chillies are added for flavour and aroma. Then, it is served with cooked rice or cooked tapioca. Grated coconut is added to this preparation by some tribal people,” said Kaviyarasan, who had lived with Kaani tribes for days as part of his research.
source: http://www.newindianexpress.com / The New Indian Express / Home> Cities> Chennai / by S.V. Krishna Chaitanya / Express News Service / May 05th, 2019
Dharun bags best athlete award
Dharun Ayyasamy who won two silver medals in 400m hurdles and 4x400m hurdles in the 18th Asian Games in 2018 was adjudged as the best male athlete at the 19th St Joseph’s Sports Academy annual day function held at St Joseph’s College of Engineering, Chennai.
In the women’s segment, PM Thabitha who won two gold medals in 100m hurdles and long jump in 3rd Youth Asian Athletics Championships held at Hong Kong, received the best female athlete award.
Thabitha won a gold and silver medal in 100m hurdles and 4x100mts relay and also created a new meet record in 100m hurdles at the 63rd SGFI Nationals held in Bhopal in 2018.
C Maruthaiyan was honoured with the Lifetime Achievement Award for his outstanding contribution to the sport of Volleyball.
Gomathi received `1 lakh from St Joseph’s Group of Institutions
B Babu Manoharan, chairman St Joseph’s Group of Institutions, awarded a cash prize of `1 lakh to international athlete M Gomathi.
Achievers of the academy who excelled at national and international level this year were given `5 lakh. An amount of `3 lakh will be distributed to 20 outstanding athletes of the academy under scholarship scheme.
All the coaches who contributed for the development of the academy were honoured at the function with a cash award of `10,000 each.
Lifetime award
C Maruthaiyan was honoured with the Lifetime Achievement Award for his outstanding contribution to the sport of Volleyball
source: http://www.newindianexpress.com / The New Indian Express / Home> Cities> Chennai / by Express News Service / May 04th, 2019
