I have a confusion regarding transfer of property and would request experts to help me out regarding the same. Myself and my brother are co-owners (50/50) of a property purchased in year 2010 in Ghaziabad. The property is under loan from a public sector bank and about 70% of the original amount of loan is still to be paid. Now my mother who is recently retired, is in a position to pay off the complete loan amount. So, we want to also include our mother's name as a co-owner in the property. What is the most cost effective way of doing so?