The process took one day.

I think they take interviews for their app promotion and nothing related to hiring. You will not hear back from them after the interview. The process of the interview is very slow, and I don't see that they are serious about hiring and professionalism. It reflects the work culture they build in the organisation. I really feel it was a waste of time.

They asked a question on designing a Rapido-like app. I feel they took suggestions from the candidate on how they can make their app better, but I am sure the candidate will not be hired and will not even be communicated with.