SATHIADEV, J. :- Defendant in an unregistered suit (S.R.No. 43243 of 1979) on the file of the District Munsif's Court, Vridhachalam, is the petitioner herein. Respondent-plaintiff filed a suit for recovery of a sum of Rs. 2600 being the one-half of the principal and interest due on a promissory note dt. 2-6-1974, executed by the defendant for Rs. 4000, payable with interest at 6 per cent per annum, Plaintiff filed O.S.738 of 1979 in the same court for recovery of a sum of Rs. 2514 towards one-half of the principal and interest due on the above promissory note under Tamil Nadu Act 40 of 1978, then in force, and got a decree on 20-6-1979. The said decree had not been executed and satisfied in full. After coming into force of Tamil Nadu Act 40 of 1979, he has filed the present suit for recovery of the amount, which is permissible under Tamil Nadu Act 40 of 1979. Learned District Munsif by order dt. 30-9-1980 held that the plaintiff could file only one suit, on the basis of one cause of action, and as it had been already exhausted in the previous suit in O.S. 738 of 1979, he cannot maintain a second suit, and hence rejected the plaint.

2. Plaintiff preferred A.S. 92 of 1980 bef