It is well-settled that the right of redemption under a mortgage deed can come to an end or be extinguished only by a process known to law, i.e., either by way of a contract between the parties to such effect, by a merger, or by a statutory provision that debars the mortgagor from redeeming the mortgage. In other words, a mortgagee who has entered into possession of the mortgaged property will have to give up such possession when a suit for redemption is filed, unless he is able to establish that the right of redemption has come to an end as per law. This emanates from the legal principle applicable to all mortgages – “Once a mortgage, always a mortgage”.