Greater Noida Authority — Not delievery of flat in xuiii, bhs 14 scheme

Address: Gautam Buddh Nagar, Uttar Pradesh

I have been allotted a flat in ews category in bhs14 scheme in 2011. Details of the scheme is as following:
Scheme name: bhs14
Sector name: xuiii
Floor: ground
Pocket: c
Name of authority: greater noida industrial development authority
Installment period: 20 years
Total amount paid : approx. 5, 47, 000
Authority said in his brosure that the possession will be hand over within 2to 3, years after allotment, but there is no chance to deliver the flat in near future. Neither any information nor any response has been received from the authority in this regard.