LLB

B.Sc in Biology is better as per MBA in mind. LL.B will not be matching for MBA.

The duration of the course is 3-years.
To know more visit the below-mentioned link: https://www.shiksha.com/law/course/ll-b-faculty-of-law-university-of-jammu-289715.

It's the most affordable university to study. The fee is Rs. 6800 to Rs. 7000 a year which includes everything from examination fee to tuition fee and library fee. It's paid in two half. Firstly, around 4500 to 4600 at the beginning of year and the rest of 2200 in alternate Sem. i.e in the second half.

Refer to the link below and check out the top LLB Colleges:
https://www.shiksha.com/law/ranking/top-law-colleges-in-india/56-2-0-0-0.

Yes, for LLB. Your graduation marks will be considered for admission.

No, it is not. National Law University, Delhi (NLUD) is a law university in India, offering courses at the undergraduate and postgraduate levels. It is situated in Sector-14, Dwarka, New Delhi, India. NLUD is one of the national law schools in India built on the five-year law degree model proposed and implemented by the Bar Council of India. The statute provides for the Chief Justice of the High Court of Delhi to function as the University's Chancellor whereas the Vice-Chancellor functions as the chief administrator.