Bribery is defined under Section 171 B of the Indian Penal Code.
1.acceptance or giving a gratification to any person with the object of inducing him or any other person to exercise any electoral right
2. rewarding any person for having exercised any such right; or accepting it as a reward for exercising any such right
3. inducing or attempting to induce any other person to do so.
It includes offering, agreeing to give or attempting to procure gratification.
I hope it helps.