There are numerous scholarships programs for UG students are available from the state government/central government/insitutions itself for meritorious students studying in UG courses. Now depending on your course you have to select the scholarship if you are eligible. Remember for most of the scholarship two criterions are followed. The first one is marks in 10+2 and the second one is Annual Family income (For most cases its asked to be less than Rs. 2,50,000/annum. But there can be scholarship which don't need such criteria).

There are scholarships for Minority, girls students etc. As you didn't mentioned your state name then it will be very hard to tell about the scholarships you can apply for. Also you didn't mentioned the subject you will be studying. So I would recommend you to visit the link below to know more about the Central/State/Institution schemes and you can apply accordingly:

https://scholarships.gov.in/

Copy & paste the above link on your browser.

I hope this answer helps. All the very best for your future endeavors!