hello usha anusha ,

it's all based on your performance in entrance exam .

your rank decides all .

if you want IITs , NITs ,etc... you have to apply for JEE mains.

Hi aspirant

There are many college for B.tech in India .You can visit the link given below to know the list.Here you can filter the colleges based on the type ,place,qualifying exam etc.

Most preferred colleges are IITs,NITs,BITs,IIITs,VIT and there are many more.

https://engineering.careers360.com/colleges/list-of-engineering-colleges-in-india

Hope this helps you.