Hi Sachin,
Their are three levels of certification exams in ABAP, and looking at you experience you should be eligible for Associate level of Certification.
You can get the details of the exams on the link:-
also for giving the exam in India, these are the ways:-
1. If you are working for any SAP Partner company, there is certification drives happening after some duration, which the partners are informed and you can appear there.
2. There is some organisation which is having authorization ( like we have Siemens ), you can take the course there and take the examination there.
3. The third way is that you get yourself registered in SAP Teched that happens in SAP India Bangalore center, and take the examination there.
For any further query you can also mail to :
to further resolve your queries.
Regards,
Saumitra