Hello Aspirant.

See ur marks in the JEE mains exam is too low for to grab any of the good govt college to pursue ur higher studies in the field of ur interest under the btech courses. U should be going for private Institution like LPU , MANIPAL , SRM and that too under management quota for ur btech career. 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