Which is better ECE in top NIT's or CSE in top IIIT's?
As far as brand value is considered, top NITS have an edge over top IIITs. And if you are concerned about placements then the tech companies allow ECE students to take part in campus.
Also, Fee structure of NITs is lower as compared to IIITs. Also, NITs get a better rank in NIRF.
However if you have made up your mind for CSE you can opt IIITs, but if you ask my preference I would certainly go for NITs.
Make sure you take your own call.
All the best