The following cards worked for me at domestic terminal T2.
1. HDFC Platinum Debit Card
2. HDFC Millenia Credit Card
3. ICICI Platinum Debit Card
4. ICICI Saphiro Credit Card
5. HDFC Regalia Credit Card
6. Magnus
But it looked like, access worked for all Visa Cards, if you have a bunch then just carry it along.