English: Photographed during the opening function of the exhibition titled ‘Illusions’ that was opened by Viren J Shah, Governor of West Bengal at the Birla Industrial & Technological Museum or (BITM), Kolkata as a part of the 45th anniversary of BITM. It was developed by the National Council of Science Museum (NCSM) under the Ministry of Culture, Govt. of India. About two hundred general people with students, teachers, and distinguished guests were present at the function.