Laxmi Constructions
Not giving NOC

I have booked a flat in the month of Sep 06 and the registration of the flat was done on 3rd Nov 06. at the time of booking builder promised that he will give the posession by Jan 08 and nov he say it will by Dec 08. all my dues are cleared and i have the letter from the builder. now that i want to sell the flat every thig is ready the builder is not giving the NOC. i had requested the builder to give me NOC as per the bank demanded to avail loan to the person who is willing to by the flat but the builder is not willing to give the NOC. what can i do to get NOC

Regards

Hanu N B