Applied through referral. Got a call from HR for scheduling interviews.
1st Round : asked questions on programming linked list and arrays and bit manipulations
2nd Round : questions primarily on OS and bit manipulations questions.
3rd Round : Detailed interview on last company experience . Dynamic Programming and DS questions.
Interviewers were very helpful . Total of 6hr of interview, all happened in single day.
HR called me on next business day to tell that they will be giving me offer and approval takes 2 3 weeks. Got the offer within a week though