Hi All, I have booked flat in KM65..Would anyone please tell me the current status. Jaypee is not giving answer properly

hi reena ji i am dr nikhil goel from meerut .
i booked a flat in KM-53 cosmos golf facing. it was in 2010 and was expected to get completed in 36 months i.e in2013. its already 4 yr late and the main thing is that if we try to communicate the jaypee green office , they are not responding well.
Moreover they are sending a notice for payment of 4-5 lacs at the time of possession, while we should get interest + penelty for the period of delay.
it comes to be about 7-8 lacs i.e after paying the amount 5 lac at the time of possession we still be getting 2-3 lac till 3yr delay.
My brother is in national commission, I discussed the matter with him, he replied that to file the case in their jurisdiction i.e noida UP , we will only get date and date……………….. and so on , because that local noida court has been captured by the influential jaypee builder team.
The only way to get the compensation is filing the case in national commission because its in delhi and not UP , justice here is fas