hi,

yes, IIT bombay has various scholarships, students belongs to reserve category like sc/st  are waiver of tuition fees on b.tech course. so apart from this you may apply for financial assistance. it would depends on the your eligibility conditions and number of scholarships available in iits.

follow the below link to know about the scholarship criteria of iit bombay based on courses:

https://www.iitb.ac.in/newacadhome/scholar.jsp