As a general practice, the lender finances 80-90% of the total amount of the residential property. However, exceptions do apply to the above stated rule. The net loan amount is dependent on several factors like monthly income, previous/existing loans, track record etc.
Please note- As per the RBI ruling, financial institutions do not fund registration and stamp duty fee as part of the net loan amount.( This is an ambiguous area as the amount can be refinanced.