In case of joint account holders whether the bankers are bound by the stop payment advice issued by one?

yes you can do that by making a complaint to the bank narrating the facts that have taken place till date further you can also make a publication to secure yourself in the local/national daily newspaper regarding the frauds being practiced by your partner that would give you some protection as it would show your bona fide in any legal action that is brought against you on the basis of the cheques signed by you.