Hello Tanmesh,

Its fine that you got poor marks in JEE Mains. If you have mentioned your locality then it would have  helpfull to suggest you list of colleges.

1.RV College Of Engineering,Banglore

2.Vishwakarma Institute of Technology pune.

3. Jamia Hamdard,New Delhi

for more information and details you can go through the link

https://engineering.careers360.com/colleges/list-of-engineering-colleges-in-India?f%5B0%5D=sm_college_course_level%3AUG&f%5B1%5D=sm_college_degree%3AB.E%20/Btech&f%5B2%5D=im_field_ownership%3A967&f%5B3%5D=sm_college_state%3ADelhi&f%5B4%5D=sm_college_state%3AMaharashtra&f%5B5%5D=sm_quali_exam%3AJEE%20Main

Good Luck!