Step 1: The mortgage contract was originally created between A (mortgagor) and B (mortgagee).
Step 2: When A sold the property to C, no direct contractual relationship (privity of contract) was created between B and C.
Step 3: Although C retained Rupees 50 lakhs to redeem the mortgage, this was an internal arrangement between A and C.
Step 4: In the absence of privity of contract, B cannot directly sue C for recovery of the mortgage amount.
Step 5: B’s remedy lies against A, the original mortgagor.