Paytm Senior IOS Developer interview questions

2nd Round of technical interview Interviewer was not clear about the question. She was confused with the things she was asking. At last only one technical question was asked that I had answered. Still got rejected. Informed the same with the HR and she assured me that she will discuss with board and now she is not responding. This was not expected from Paytm

some what difficult first they asked data structure after that they moved to ios concepts they dig into ios core concepts GCD,Singleton.,class, structs GCD,Singleton.,class, structs some what difficult first they asked data structure after that they moved to ios concepts they dig into ios core concepts GCD,Singleton.,class, structs GCD,Singleton.,class, structs GCD,Singleton.,class, structs GCD,Singleton.,class, structs