I read on one of the forums that there was a PR by Samsung which said SGS2 at 29990. Also, many dealers have shouted out 28k or so. So there is no harm in expected a within 30k market price. Even dhruv has confirmed that.
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If you have to buy a phone right now, don't look further than SGS1. Nothing comes close at 23k. Even when it was 27k, it was considered by many many over Desire HD and it also won smartphone of the year 2010 at GSMArena.