1. Is it maximum of 3 people or strictly a team of 3?
Its a maximum of 3.But no special credit for teams with lesser participants.
2. Are UG-PG collaboration teams,cross college teams allowed?
3. Is any registration fee required?
Nope.Except for registration in Pragyan, no special fee is needed
If there are any queries regarding the problem statement, mail them to firstname.lastname@example.org