Hey,

According to my research I guess you should go for BANARAS HINDU UNIVERSITY for B.COM because of the following points:-

1) BHU is a central University and LUCKNOW UNIVERSITY is a state University.

2)BHU has more popularity and reputation among parents and students and everywhere. And studing in this University will give you a tag of BHU which will help you in your future.

3) there is no political drama in BHU.

4) BHU has amazing infrastructure and excellent environment.

5) BHU conducts many extra curricular activities along with studies which will help in building a good personality.

Hope it helps.

Good luck.

Hey dear, lucknow university and BHU are both govt. Universities and are topnotch institution for all the courses. Since you asked for B.com, than i would suggest you to go for Banaras hindu university as it has better faculty than lucknow university  from all over the world and the brand value of BHU is also greater than lucknow university.