Dear Ayush,

The best categorisation of engineering colleges:

TIER 1- IIT B,K,KGP,D,M,R, BHU, HYD,BITS pilani pilani campus,IIIT HYD, IIIT Allahabad, NIT K,W,T, DTU , NSIT, ISM(Dhanbad)

TIER 1.5- NEW IITS like mandi,gandhinagar,patna, DAIICT, BITS HYD, BITS GOA, BIT Mesra, IIIT Bangalore , IIIT Gwalior, NITS-Calicut,Nagpur,rourkela,kurukhetra,Allahabad,Bhopal,Jaipur,durgapur, jamshedpur, Jadavpur university , IIIT DELHI, LNMIIT, Thapar university.

Tier 2 - rest of the NITS

Tier 3- lower level state Government colleges.

Tier 4- Amity, LPU, ITM, Manipal, SRM main, GLA-Mathura, Galgotia, BML, SRMS, VIT, JNTU , BMS Bangalore , RV Bangalore and other fraud private engineering colleges , other IIITS Like Vadodara etc, other top state government colleges.