is signature in a promissory note is legally valid
and signature on animent paper without money is valid
if you unconditionally signed the promissory note binding yourself to pay money to another person, you are bound by the terms of that note u/Ss. 4 NI Act.
If you execute promissory note on plain paper, you need to get it stamped. Depending where you reside,in case promissory note is presented unstamped, the officer whom it was presented will normally fix appropriate adhesive stamp & charge duty against the payor. Alternatively, you can execute PN on non-judicial stamp paper, depending on value of item mentioned in PN.
regards
