Hello somu 

CMRIT :

As far as academic teaching they have very good faculties.

A very few extra curriculars/workshops you can expect the very few from the college. If you are really interested to do some then go ahead and do it and you can proceed with assistance guidance from the faculties.

As far placements is concerned I can tell you from both colleges you'll find very few core companies visiting or not at all.

NHCE :

It provides education to the students in a way that each student will really get well in there academics, very well experienced Faculty, trained professors, and also they do concentrate on co-curricular activities also,And recently NHCE was placed at 99th rank in all over India top engineering colleges by NRIF ranking,

So u can choose NHCE rather than CMRIT.