Every alternate Saturday at the Chai and Why session — Tata Institute of Fundamental Research’s informal forum for public to interact with scientists and learn about their contributions — there is plenty of sharing of knowledge of science. With specials like Holi or Diwali, they cover theme-appropriate topics, such as colours or light.

For this year’s Holi special, through A mauve in the right direction: understanding biology through colours, research scholar Sravanthi Nadiminti will cover the topic of fluorescent proteins which are artificially introduced colours to visualise biological systems.