B.Com

For private or distance, you may directly enroll with the institute of distance and open learning. Visit mu.ac.in and for regular, there are many check it on the university website.

What are those every aspect? You are comparing an apple with an orange, both are different fruits with different qualities. If you want to make a career in civil services or want to pursue MBA both courses help. If you want to do CA or CMA then BBA does not help. If you want to opt for a career in sales or marketing or HR then BBA (only if it is done from good, reputed institutes) will help.

You may refer to the following link to have an idea about the fee of 5-years integrated law degree at NLU, Bangalore: https://www.nls.ac.in/index.php?option=com_content&view=article&id=43&Itemid=28. Other NLUs will have a similar fee structure.

Dear,
If you have an aim for management level profile and good growth then BBA will be a better choice because through that, you will get knowledge, skills and opportunities. You will get knowledge of management studies, financial planning, marketing strategy, etc.
All the best.

Dear,
If you have an aim for management level profile and good growth then BMS will be a better choice because through that, you will get knowledge, skills and opportunities .You will get knowledge of management studies, financial planning, marketing strategy, etc.
All the best.

B.Com with CA or CS is a very good mix.

It fully depends on your interest, as MBA has different specialisations and you can opt for your specialisation. I would suggest a name- UEM Kolkata to give it a try as this has good placement consistent record and is good in molding career to right path.