On 16th May 2022 IEEE Photonics Society held an expert talk on ‘Programmable Photonics’ as part of the international day of light celebration. The speaker of this splendid workshop was  Prof. Bijoy K. Das, IIT Madras. He is one of the founding members of the Centre for NEMS and Nanophotonics (CNNP) at IIT Madras and Chief Investigator of the Silicon Photonics Centre of Excellence – Centre for Programmable Photonic Integrated Circuits and Systems (CPPICS), funded by the MeitY, Govt. of India.