Helo aspirant, to get the best college you need to clear the jee entrance exam . Only then you wil be able to get the best collge. There are also various exams such as bits,vellore entrance exam and so on .
Thanks

Here are the top colleges of Engineering given below:

Indian Institute of Technology Bombay

Indian Institute of Technology Delhi

Indian Institute of Technology Kanpur

Indian Institute of Technology Kharagpur

You can refer the below given link to check the further colleges.

https://engineering.careers360.com/colleges/ranking

Good Luck!