The plaintiff states that the property in No.2 and the New No.4. Dr.Singaravelu Street, T.Nagar, Chennai 600 017 described in schedule A originally belonged to Kannammal the mother of defendants 1-3 and grantmother of the 4th defendant. The plaintiff had been a tenant of the out-house of the said property from April 1960 and during the life time of Kannammal the said Kannammal mortgaged the suit property as described in the schedule A in favour of Sakra Chand Sowkar in mortgage deed dated 21.08.1952 and also mortgaged the very same property in Purasawalkam Hindu Janopakara Saswatha Nidhi by means of 3 successive mortgage deeds respectively for Rs.8000/-, Rs.400/- and Rs 6,500 dated 12.06.58, 12.06.58 and 05.10.59 She appears to have mortgaged the said property in pursuance of a registered mortgage deed securing prompt and due repayment of a sum of Rs.5,000/-in favour of one Swaminatha lyer and borrowed Rs.3000/- and executed a promissory note of 21.01.96 in favour of Swaminatha lyer to discharge the said debts. In order to come out of all the mortgages Kannammal executed another mortgage on 14.09.67 in favour of G.D.Raj for a sum of Rs.40,000 over the schedule A property. She defaulted in the payment of interest and principal towards G.D.Raj. Hence