I applied in-person. The process took 1 day. I interviewed at Nanu Nana (Gurgaon, Haryana) in Mar 2017
Interview
firstly take written then interview' test which included questions related to programming, algo & some output questions & then Technical face to face round in which they checked the knowledge of technology which you have. Written test was for half an hour & face to face was for 20-25 mins.