X mortgages his house to Y for a period of 5 years. On expiry of the said period, X pays the mortgage money to Y and asks Y to retransfer the rights to X. Y fails to do so. (i) What is the right of the mortgagor on repayment of mortgage money? Explain. (ii) During the subsistence of the mortgage, can the mortgagor lease the mortgaged property? Explain with the help of relevant provision.