I applied through college or university. The process took 1 day. I interviewed at Dr. Reddy's (Thanjāvūr) in Sep 2019
Interview
Was cluttered and tiresome. Although the questions were at par to the core knowledge, the organisation among themselves was poor. They dragged the only round (HR round) till late night and for students who came at last according to grouping, they made that a random GD session without even the HR round and made them speak randomly without even a structured topic!