Organized jointly by TIFR and Prithvi Theatre, Chai and Why is a monthly informal event in which to discuss all things science. An effort towards making scientific discussions informal and more accessible, this is a great, comfortable atmosphere, in which even people with no background in science can ask questions about the latest developments in the field. The event features a short introductory talk by a speaker (a scientist), after which there is chai (of course!) and an informal discussion about the talk, peppered with lots of questions and answers. Go ahead and be part of this unique initiative!