I got a call for interview on 7th Jan 2017, Hyderabad. When I went for the interview there were already 500+ candidate were waiting for their turn. My turn came after waiting for more than an hour. 1st round : Technical Asked the questions about informatica and some questions from resume. 2nd round : Technical It was already very late, even the interviewer was in hurry to go home. He asked me few basic questions for 10 mins 3rd round : HR It was salary discussion round and even they offeres very less salary compared to market, I agreed and ready to relocate anywhere. Next day I got a mail for document verification. I have sent everything they needed. After 2 days got a call from HR that you have project interview round in few minutes, be prepared. Got call from offshore team, cleared the round and I asked when i will get the offer letter? He said soon you will get it and this interview will not impact your selection. Same day again got a call that you have onsite interview round in few minutes be prepared. I said fine and till evening i waited but dint receive any call. I tried calling them but no one received. I thought they will call me tomorrow. But the very next day they have sent me regret letter without any justification. I replied to them asking for the justification but no reply. Is it a professional way to deal with experienced candidate?