I bought the Flat at Kalpataru Serenity 1.5 years back with possession date as Aug-2014. Til date we did not received the possession and Lot of work is still pending. I may take another 6 months for possession. Builder is not telling the reason for delay.
The building is pointing at the Grace period mentioned somewhere in the agreement. So if somebody is booking the flat please make sure what grace period is mentioned. Ask for the draft copy of agreement and read carefully. Lot of hidden things are there which Builder take for granted.