86 Reviews
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Sameer Desai
· December 17, 2017
Great way to educate the masses about latest happenings in the various scientific domains and also helps build a scientific temperament amongst members of society.
Janjri Jasani
· July 4, 2017
The first talk I went to was listening to the brilliant Krushamegh Kunte talk about the evolutionary and genetic basis for the colour of butterfly wings... I was hooked. If you're looking to learn som...ething new, expand your horizons and exercise your grey cells... Chai and Why is the perfect Sunday morning out. I only wish I had known about it earlier and it was a little closer to town � See More
Cyrus Khan
· July 27, 2017
A regular source of knowledge and wonder for anyone with an inkling of curiosity about science, nature and the world around us. Chai and Why connects professional scientists and researchers and the wo...rk they do to the everyday public. See More
Ragini Kumaran
· November 14, 2017
Actually I didn't attend yet.. Waiting for the opportunity..I heard through Dr.Arnab...I felt that they are touching the students scientifically..
Amit Agarwal
· September 30, 2016
Great learning opportunity across a wide variety of topics. Highly complex topics discussed in a simplified, easy to understand manner.
Prithvi is also a lovely location - you can stroll down to Juhu ...beach in 5 minutes, kids can play in the sand or wet their feet amongst the waves. See More
Ajay Kumar Reddy
· December 4, 2017
Very good source of knowledge, and loved to join it.
Sheetal Doshi
· October 30, 2016
I loved Chai and Why because of the way we learn, ask and discuss here. We are free to put up our opinion and confer scientifically with science enthusiasts and I love the hardwork done by TIFR and m...any scientists to put up such a wonderful science show, so thanks a lot and best wishes to Chai and Why. See More
Palak Jain
· July 17, 2017
We attended the session at Ruparel college about Alzheimer's by Anusheela Chatterjee . It was insightful , fun and awe inspiring
Sanjoy Choudhury
· February 28, 2016
It was an excellent initiative by Prof. Bhattacharya of TIFR chai and why and the entire TIFR team to hold an excellent Science Popularisation and Public Outreach event on the occasion of National Sci...ence Day today. A well spent baby's day out on a Sunday at TIFR Mumbai ! Prof. Unnikrishnan was excellent and so was Liquid Nitogen demonstration. Other talks and demonstrations were also quite good. Request TIFR to hold more such programs in the future. See More
Jagat Parikh
· April 4, 2017
Great place to go and open your minds on wide variety of topics. Thanks to the Chai & Why team. Awesome job.
Amitabh Krishna
· February 28, 2016
Spent a lovely Sunday with family at TIFR seeing and listening to some very interesting aspects of Physics. The talk by Prof Unnikrishnan on Gravitational waves was great. The talk on Radioactivity ...was even more interesting. Thank you TIFR for organising such an event. V look forward to coming back for more such interactive events. Sunday very well spent. See More
Gautam Vaishnav
· February 9, 2016
One of the outstanding lectures we get to attend every alternative sunday a must go place
Shubham Tanpathak
· June 4, 2016
Must For Aspiring Mumbai....
It is a pleasure to attend the sessions , the programme which helps us to understand the Fundamental principles of our every day life . Every single session attended makes... us fall in love with Pure Science differently
Thank You very Much Arnab Sir and His TIFR Team for These wonderful initiative
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Abhishek Ashok
· November 27, 2016
i have not yet used it but tifr as a place is soo gooood that i had to do this as i got home
Sarvesh Kamat
· July 16, 2017
It was a fascinating experience!! Enjoyed the seminar ♥
Ananya Subramanian Iyer
· September 15, 2015
It was so wonderful that Mr.Arnab Bhattacharya came to Witty International School and enlightened the students wwith simple experiments of science that could change their lives !
-Ananya (a fellow student )
Shriraj Pethe
· November 6, 2015
The 'Chai And Why' is very interesting series of lectures arraigned by TIFR. Each lecture us about different science topics. Science lovers would love it
TIFR Presents Frontiers of Science Annual Open House
TIFR Presents Frontiers of Science Annual Open House
TIFR Presents Frontiers of Science Annual Open House

What's the Joule-Thomson effect got to do with the skyscraper boom in the early 1900s? How is antimatter used today? How did the study of some salt-tolerant bugs lead to a revolution in genetics? Is Einstein's general relativity useful in everyday life? For a lot of fun stories and more, come to Chai and Why? today, where Arnab Bhattacharya will talk about the role of curiosity driven fundamental research.

PLEASE be on time! Keep extra time in hand for traffic, mega-blocks and all that Mumbai throws at you on a Sunday morning. We begin punctually at 11 am!

RIP Stephen Hawking. Not just a great physicist, but also a doyen of science outreach who brought the universe, black holes, space-time, the future of our planet among other topics into the public consciousness thanks to his books and writings. "However difficult life may seem, there is always something you can do, and succeed at. It matters that you just don’t give up.”


Chai and Why?
Sunday April 1, 2018
11 am
Prithvi Theatre

Through the Electron Microscope
Bhagyashree Chalke

In a conventional optical microscope, the wavelength of light limits the smallest size of objects that can clearly be seen. Using a beam of electrons to create an image of a specimen allows much higher magnifications and greater resolving power than a light microscope, allowing much smaller objects to be seen in finer detail. Modern electron microscopes can almost resolve individual atoms, and help provide a fascinating insight into the world of the very small

About the speaker: Bhagyashree Chalke is a scientific officer in the electron microscopy facility at TIFR

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Sun 11:00 AM UTC+05:30Prithvi TheatreMumbai, India
112 people interested

Chai and Why?
D.G. Ruparel College
Matunga(W), Mumbai
Sunday March 18, 2018
11 am


Why bother about basic research?
Arnab Bhattacharya

In a world that is increasingly technology oriented, it is often easy to forget that many of the things we take for granted today – from smartphones to modern medicines, or WhatsApp messaging to online shopping – would never be a reality if it were not for some curiosity-driven research done perhaps many years ago, just to satisfy the basic human desire to know more about the world around us. Einstein worked on his theory of relativity not because he thought that someday a GPS chip in a phone would allow people to play Pokemon Go, but for the sheer beauty of scientific knowledge and mathematical form, wanting to understand how certain things in the universe worked perhaps just a little better. When the world is beset with problems of poverty, hunger, energy, disease, terrorism… why should we pursue basic research simply for the sake of curiosity and discovery? At a time when funding for science can often be based on biased ideologies or demonstrating a quick return on investment let's discuss if and why pursuing basic research is indeed important.

ENTRY FREE! No pre-registration required. Please be on time. We start punctually.

About the speaker: Arnab Bhattacharya is a scientist and passionate science communicator, who pioneered the “Chai-and- Why?” series.

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At tomorrow's Chai and Why session, Yogesh Wadadekar plans to take us on an amazingly colourful journey from the solar system planets to the edge of the universe. Here's a sneak preview - check out colours of the stars in the Omega Centauri cluster and the beautiful butterfly like colours of the Twin Jet Nebula. Come join us to find out what all we can learn from our Multicolour Universe!

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#HappyHoli Here are different purification fractions of a super-sensitive colorimetric and fluorescent sensor for detecting mercury ions in water, research of Sayani Das from Ankona Datta's lab at TIFR. Who said science can't be colourful?!

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Happy Holi! In this year's Holi special Chai and Why? on Sunday we'll be looking at the Multicolour Universe. How does observing the same galaxy or other celestial object in different colours, not just from violet to red, but all the way from radio waves to gamma rays help us in knowing a little bit more about what's happening in our universe?!

Sun 11:00 AM UTC+05:30Prithvi TheatreMumbai, India
253 people interested

Happy National Science Day! While we in India commemorate the observation of the Raman effect it is a great day to celebrate science anyway! Feb 28th happens the birthday of Nobel laureates Hench, Medewar, Pauling, Cooper, Tsui, Chu, and Krugman and death anniversary of Nicole, Chamberlain and Glaser. Tried to summarize it in one picture!

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Our science day celebrations aren't over yet! Tomorrow evening (Wed. 28th), we have our yearly National Science Day public lecture. This year Rakesh Mishra, the director of CCMB Hyderabad will tell us about our body clock, the subject that the winners of the 2017 Nobel Prize worked on, and why the tiny fruit fly is so important for a lot of research in biology, both for the study of time-keeping and beyond!

Wed 5:00 PM UTC+05:30Tata Institute of Fundamental ResearchMumbai, India
148 people interested

Here's another event happening around National Science Day which might be of interest! The Asia Society India Chapter is hosting a panel discussion on STEM education and research in India, including funding for R&D, the gender balance etc. at Nehru Centre, Worli on 1st March at 6:30 PM. HBCSE TIFR's Prof. G. Nagarjuna will moderate the discussion. Entry free. Check the event below for details/RSVP link.

Thu 6:30 PM UTC+05:30Hall of HarmonyMumbai, India
139 people interested

Thank you all who came from far and near to our Science Day celebrations yesterday, hope you had a fun experience! Do check our regular Chai and Why? sessions and public lectures as well. And yes, we've seen your feedback, we'll bring back the popular "science in the kitchen" kind of demos next time! Also, if you have any questions about what you saw, do feel free to ask us and we'll do our best to find out and get back to you.

It was a fun day on Sunday for kids and people of all ages as the Tata Institute of Fundamental Research (TIFR) hosted its annual Science Day.

We're all set for our National Science Day celebration tomorrow at the TIFR Colaba campus. 22 labs will be open,we have public lectures on "Meta-Bol" and origami, "fiery hot" and "super cold" demos, lots of stuff to explore under a microscope, a whole world of math fun and a lot more.... Mumbai - if you want your annual dose of FUNdamental Research come over to TIFR tomorrow!

New! At this Sunday's National Science Day celebrations in TIFR we will be welcoming the outreach team from Indian Institute of Geomagnetism, Navi Mumbai who will be setting up their exhibits telling us about the wondrous assault of the magnetic sun on the magnetic earth and the resulting phenomena. Be prepared to get attracted to the geomagnetism stall!

Due to an overwhelming response we are halting the registration for lab visits for our National Science Day celebrations at TIFR this Sunday 25th Feb. If we can get more labs opened up, or if there are cancellations, we will enroll more visitors.
However, do feel free to come to TIFR to listen to engaging lectures in the Homi Bhabha Auditorium and other enjoy the Science Mela with its demos and hands on activities. If you are are large group (>20) do email to stating the number of persons in your group and your mobile number.

TIFR Alumni Association
National Science Day Public Lecture

Wednesday, February 28, 2018 at 5.15 p.m.
Homi Bhabha Auditorium...
Tata Institute of Fundamental Research
Colaba, Mumbai 400005

Lessons in time keeping from the fly

Rakesh K. Mishra
CCMB, Hyderabad

One of the essential and spectacular displays of life on earth is time keeping. From practicing the 24 hr rhythm to determining the average life-span, living beings stick to their timing. The work of Jeffrey C. Hall, Michael Rosbash and Michael W. Young that explains the molecular mechanism of this time keeping process using fruit-fly as the model system. Their findings explain how plants, animals and humans adapt their biological rhythm so that it is synchronized with the Earth's revolutions. This work was recognized by the 2017 Nobel Prize in Physiology or Medicine. This story also demonstrates that simple and convenient model system like fruit-fly can be used to investigate the general principles and mechanisms of life processes. Such systems can therefore, help us understand human diseases and potential remedies.

About the speaker: Dr. Mishra received his Ph.D. in Organic Chemistry in 1986 from University of Allahabad and started his career in biology by studying DNA structure at Molecular Biophysics Unit of the Indian Institute of Science, Bangalore, and, subsequently, effect of such structures on the regulatory functions at the Centre for Cellular and Molecular Biology, Hyderabad. He explored small antisense DNA approach to control of protozoan parasites at the University of Bordeaux, France, and use of such tools to understand the mechanism of RNA processing in frog eggs at Saint Louis University, Missouri, USA. He has also held a position at the University of Geneva, Switzerland. He is currently the Director of CCMB.
He is a Fellow of the Indian Academy of Sciences, the National Academy of Sciences, the Indian National Science Academy. Dr Mishra is currently a J C Bose National Fellow of the Department of Science and Technology.


For details: 22782473, 22782500, mail:,
Please do bring a valid photo ID to facilitate entry into TIFR!

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Wed 5:00 PM UTC+05:30Tata Institute of Fundamental ResearchMumbai, India
148 people interested