Well firstly, congratulations for your decent performance in JEE mains.

With this rank you do hold a chance of getting an ECE at an average NIT or NEW IIIT. 

But from looking at the curriculum and respinses of my colleagues, I would preffered you to opt for IIIT.

1. As more centre focussed towards industry knowledge.

2. Provides a better coding and web development culture.

So with this rank the best IIIT possible are

1. IIIT Trichy

2. IIIT Lucknow

Thank You