There are more or less 70 to 75 engineering colleges in Delhi. IIT Delhi offers admission through Jee Advanced, other colleges like IIIT Delhi, DTU, Netaji Subhas University of Technology, NIT Delhi, Bharati Vidyapeeth's College of Engineering, Amity School of Engineering and Technology and many other colleges offer admission on the basis of Jee Main. Fee colleges like Maharaja Agrasen Institute of Technology, Maharaja Surajmal Institute of Technology, Delhi Institute of Tool Engineering etc offers admission on the basis of Jee Main paper 1 score but through IPU CET counselling. SRM University, Delhi-NCR, Sonepat accepts SRMJEE score for admission. Check the list of all colleges and their admission processes
http://engineering.careers360.com/colleges/list-of-engineering-colleges-in-delhi