Hey Manish.

See the rank u have secured in the JEE mains is too low for u to grab any seats in any of the streams in the good colleges like NITs IIITs or GFTIs for pursuing ur higher studies in the field of ur interest under the btech courses. U should eb going for private Institution and that too under management quota. I m providing u a link for ur help.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches/amp&ved=2ahUKEwjy4639hKLiAhUF6nMBHa0HBQMQFjAJegQIAhAB&usg=AOvVaw2OXl9cMS4B7GJ9DfTIJZCg&ampcf=1

Ask if any query. Good luck