B.Com

Every year, thousands of MBA aspirants prepare for the CAT with a hope of clearing the exam with great scores and securing a seat in a top B-School. One of the biggest mantras of clearing the exam is following the right preparation strategy. One needs to identify what works in his/her favor, and follow the same. Various people have different preparation strategies for their exams. Refer to the link provided below for details regarding preparation for the CAT exams. https://www.shiksha.com/mba/articles/this-cat-preparation-strategy-is-the-golden-ticket-to-success-blogId-14642.

No you can't do B.Com. It is for commerce students.

You may go for MBA, M.Com CA CS and many more, all depends on your interest.

Yes, in Jamia Millia Islamia there's an entrance exam for B.Com (Hons), there's no merit system in Jamia Millia Islamia.

There are a lot of campuses for MBA education in our country. I will suggest you some based on education standard and placement opportunities.
Studying MBA always helps you to get a good job and safe career.The colleges in tier 2 and tier 3 are easily possible for you to apply. Some of the best campuses are as follows: Acharya, RVIM, MSRIM, Adarsh, AIMIT, Community Institute of Management Studies, Alliance, Sambhram, Presidency, St. Johns, St. Aloysius, DC School of Management, Koshys Group of Institutions, SCMS, Marthoma, Hindustan, Sri Krishna, IBMR, IBS, ISME, IZEE. Best of luck!