Dear aspirant !

Hope you are doing well ! I am assuming that you are asking about engineering college only. JEE Main is the most widely accepted entrance exam for top engineering colleges in India. Jadavpur University has the lowest tuition fee of INR 21,000. IIT Madras, followed by IIT Delhi, IIT Bombay, IIT Kanpur, IIT Roorkee, etc., emerged as the top engineering colleges in India.

https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://engineering.careers360.com/articles/11-cheapest-colleges-study-btech-in-delhi-fsa&ved=2ahUKEwj8tOKl3OWFAxXHmVYBHQc7BnoQFnoECCAQAQ&usg=AOvVaw2xfE9At9S4Xi5w86rVpBG2 .

Thanks