Some of the b-schools which have their own MBA entrance exams are:

• Narsee Monjee Institute of Management Studies (NMIMS) conducts NMAT exam
• Symbiosis Institute of Management conducts SNAP exam
• Indian Institute of Foreign Trade (IIFT) conducts IIFT exam
• XLRI Jamshedpur on behalf of Xavier Association of Management Institutes (XAMI) conducts XAT exam
• Institute of Rural Management Anand (IRMA) conducts IRMA exam
• Tata Institute of Social Sciences conducts TISS test

Among this, some of the exams like XAT, SNAP and NMAT's score is widely accepted by many other private colleges to give admission.

All the best!!