Kolkata students create Guinness World Records

The Guinness World Records for the largest astrophysics lesson (45 minutes) and assembly of spectroscopes was successfully achieved by Kolkata students at Science City, Kolkata.
The record was attempted on the first day of 5th India International Science Festival (IISF) 2019 in which over 1,598 students participated. The session was dedicated to Meghnad Saha and Chandrasekhara Venkata Raman.