Hello ,

See , there are several ways to take admission in Btech. If you want to get admission in government colleges then you have to give JEE MAINS entrance exam first. On the basis of your marks , you will get the college. Some private colleges take admission directly on the basis of 12th percentage. And some colleges have their own entrance exams.

To know more. Refer this ,

https://engineering.careers360.com/articles/btech-admission

Revert for further query!