How can we stop the use of money in buying voters?

It is no use educating people who are now quite habituated to receiving freebies and cash from the political parties. It is a stigma which we all have to live by and accept. Only when truly educated and cultured people decide to enter politics and corruption is wrenched off from political scene, can we expect for any changes in such situation.

in this matter we only have to do one thing and that is we have to educate people and teach them the importance of vote

TN has under Amma perfected the art of using State money for giving whole lot of freebies to the citizens. But if she is delivering on other area of governance people may vote her back. corrupt DMK gave free TV's to voters before last elections. They accepted the free gift and voted for Amma. So let us not underestimate the voter.

laws and police protection should be very strict in matters of politicians who are thinking of buying the votes.

If public decide to stop this then it can be stop otherwise in India there are many type of person some are good some are greedy and it happen closely. 

It can also be stop if corruption end if no black money then how they can give it to public.

yes i agree with you, it will come to an end only if the people want to do it because the money are given to the people and if the people say that they don't want money to give vote for him/her then i think it will come to an end