Depends on your interest.

Don't see where all the girls are going and don't follow them

You should always choose what you would like to be so as to have the best happy career in future.

Hey dear it depends on your interest solely but as per my knowledge for girls best branches I would enlist below so you can get clear idea

ECE

IT

Cse

Biotechnology

The above mentioned branches have most girls in an college mostly and they have very good scope too 

you can have Better scope for the above branches