The whole interview took one and a half months time. They are very disorganised. The time it took between rounds was around one to two weeks. Usually we assume that it's not going to work out if the HR doesn't get back to you in a week time. They took more than that to come to a conclusion. For me after even salary discussion and settling on an amount, they sent me a regret mail after two weeks. I took it easy on other interviews because they assured the offer.