1. This is an appeal by the first defendant. The suit is on a promissory note. The promissory note is Ext.Al. It is dated 20-6-1975. The first defendant executed a promissory note, Ext.A2 on 15-12-1972 in favour of second defendant. The amount covered by Ext. A2 promissory note was Rs.7,500/- The second defendant endorsed this promissory note in favour of the plaintiff on 5-6-1973. Thereafter, the first defendant executed a promissory note in favour of the plaintiff showing the consideration of Ext.A2 and the interest on the amount advanced under Ext.A2 as the consideration for Ext.Al promissory note. Even after demand, the first defendant did not pay the amount. So, the plaintiff instituted the suit.

2. The first defendant contended that he has not executed the promissory note. He also contended that there is no consideration for the promissory note. The only question that has to be decided is whether the promissory note is a genuine one or not. Otherwise, the only point that has to be seriously considered is whether the first defendant has executed the promissory note. Normally, the promissory note does not require witnesses. It is really a difficult task for the plain