if the defendants admit the signature in the promissory note, presumption will be in favour of the plaintiff that the promissory note has been executed for valuable consideration. In the present case, the defendants have not executed the promissory note. It is alleged by the plaintiff that the suit promissory note has been executed by the deceased Pichandi (father of the 2nd defendant). When the defendants take a specific plea that the suit promissory note is a forged one, then the primary burden would be on the plaintiff to prove that the suit promissory note has been executed by the deceased Pichandi and that, it is supported by consideration as shown therein. The plaintiff has examined himself as P.W.1 and he has marked the Promissory Note as Exhibit A1. Thereafter, the plaintiff had not chosen to examine any other witnesses to prove that the signature in the suit promissory note has been affixed by the deceased Pichandi. Hence, the legal heirs of the deceased Pichandi are not liable to pay any money to the plaintiff.