Ghaziabad Development Authority [GDA] — Possession of the flat.

Address:

Vikas Path, Hapur Rd, Near Old Bus Stand (Foot Over Bridge), Naya Ganj, Ghaziabad, Uttar Pradesh 201001

I am writing here for "H-407 flat under Indraprastha Awas Yojna by Ghaziabad Development".
After several complaints and reminders, my matter hasn't been resolved till now. The department is showing pending amount on me which I have to pay to get possession.
After paying all logical dues and installments within given time frame, I am not liable to pay any dues.