Hello Aspirant, If you got 76.23 percentile in JEE Main then your rank after JEE Main April will be around 2.6 lakhs, With this you can't get government college but some of the private colleges in Delhi which takes admission on the basis of JEE Mains where you can apply are

Delhi Technological University

Maharaja Sujamal Institute of Technology

Indraprastha Institute of Information technology, Delhi

Netaji Subas University of technology, New Delhi

Bharti Vidyapeeth College of Engineering

Amity School of Engineering and Technology, Bijwasan

CBS Group of Institute, Delhi