North Bengal University

Yes, today's college reputation is very important. like the difference between IIT/NIT and an ordinary Engineering college. Similarly doing the law course from a reputed preferably from the Government's Law colleges will definitely matter.

Yes you can get admission in DDE, University of North Bengal in M.A. in History. As per the University Admission notification of dated 16.09.2020. there is no specific percentage requiremens for the asked PG course.
Eligibility criteria : (a) B.A. (Hons) degree in the respective subject OR (b) B.A.( Pass/ General Course under
10+2+3 pattern / Old 11+3 pattern) OR (c) 2 years B.A. degree with 1 year Bridge Course, from any recognized University.

Yes, you can get admission. All the best. It's a great career choice.

NBU offers the following UG and PG programs through distance mode, as BA, B.Com, MA and M.Sc (Mathematics). Hence, LLB through distance is not available here.