It depends upon which iit or which nit. According to me, through all kinds of aspects IIT BOMBAY, DELHI, MADRAS, KGP, KANPUR, ROORKEE, GUWAHATI, HYDERABAD will be better choice than bits pilani. Among the nits, NIT TRICHY and bits pilani are almost same. But bits is surely better than any other nit.
BITS PILANI is one of the best engineering colleges in India!!!