Hello NAGATEJA !!

In these three options I suggest you to go for CSE in GRIET. Even though CBIT and JNTU are top colleges, compromising branch for them are not worth it. If you are getting IT in these two colleges then you could go for it. Because, IT has better placements than EEE and ECE. CSE in GRIET too is very great. Many students from CSE get placements above 20 lakhs in this college. But, if you compromise your branch and go for ECE OR EEE in CBIT or JNTUH you wont have good placements that you get if you do CSE in GRIET.

Hope this information helps you .