Is ITI equivalent to Intermediate???? Which are the good colleges for the ITI diploma courses???

Sorry to say you, but the ITI is not equivalent to the intermediate or 12th. ITI is diploma course.
12th is educationally course. Many jobs required 12th passed but they don't agree with ITI diploma holder. The advantage of doing ITI diploma course is that after completing this course you can get direct admission in the second year of the engineering course.

This is the list of some good ITI colleges:
Bhadrak Institutes of Engineering and Technology - Balasore
Bharati Vidyapeeth's Jawaharlal Nehru Institutes of Technology - Pune
Dayanand Sagar College of Engineering Bangalore
Kalpana Chwala Government Polytechnic for Women - Ambala
Ghousia Polytechnic for Women- Bangalore
Government Polytechnic Amravati
Government Polytechnic College - Ahmedabad
Hindustan Academy - Bangalore
Institute of Rail Transport - New Delhi
Meera Bai Polytechnic for Women , Delhi
MEI Polytechnic Bangalore
Nirma University of Science and Technology - Ahmedabad
Polytechnic for Women,delhi
Rural Polytechnic for women , Ahmednagar
Govt. Polytechnic for Women, Haryana