I'm preparing for IIT but want to do business so should I continue for IIT and then MBA or should go through business schools?

For JBIMS, Mumbai, the MAH CET cut off is usually 99.99 percentiel. The cut offs have remained static in the past 3-4 years. 

Jamnalal Bajaj Institute of Management Studies library has 38,762 books, 8,773 journals comprising of 50 international journals, 45 national journals, 21 exchange journals and 8,657 bound journals. 

JBIMS Mumbai is widely considered worth high expectations due to its phenomenal Return on Investment & elite status and strong established alumni network. It offers top tier placement opportunities, high profile finance & marketing roles & 100% placement rate for internships. 

Faculty at JBIMS Mumbai fosters student success through blend of world class, industry experienced professors & practical application oriented curriculum. They focus on developing leadership skills, providing mentorship & ensuring high industry exposure through guest lectures & real time case studie

JBIMS does not accept ATMA scores anymore for MMS admissions and it accepts CAT, MAH MBA CET, and GMAT scores. 

The ATMA cutoff for PUMBA is usually high and ranges between 95 to 99 percentile.