Where can I file complaint against the builder of the flat I booked, f

Pl clarify the following: 1. If any buyer buys flat from builder by taking Home loan & also mentions in 'Agreement of sale' that he will let/sublet his property to third agency after possession, than Is this buyer treated as 'Consumer' as per Consumer Act? 2. The cost of properties is Rs. 52 lakh and compensation to be claimed is Rs. 60 lakh in last 4 years. Can buyer file case in National Consumer forum? 3. If case is filed in National Consumer Forum through Offline method than would court summon builder for hearing at National Consumer Forum, New Delhi? 4. The place of buyer's residence is different from builder's office. Can Buyer case file in Consumer court at his residence district?