BBA

You must give CAT or GMAT to get into IIM-Trichy.

1.76 lacs per semester. That is, 3.52 lacs per year. For 5 years, 17.6 lacs. Thats a huge amount.

These will help you for sure !!
http://www.apnaahangout.com/bsc-bcom-indian-army-commissioned-officer/
http://topyaps.com/5-steps-join-indian-army-graduation

BBALLB is btr only tn bba

Yes, you can do. There are colleges like StXaviers that take students who had maths. But there are colleges that take students who did not have maths. Just check the your eligibility in the college in which you want to apply before applying.

Christ University Bangalore; but its admission procedure is over. But Madras Christian College's admission is still under process. You can apply there.

BBA is a one way course. After BBA, you will only be able to do MBA. And can give compititive exams like IBPS, UPSC, SBI- PO to get a job. Of you are keen on doing MBA, only then choose BBA. Whereas, you can go for BCom. BCom will also lead to MBA, but also will keep doors open for MCom, LLB, CA, etc. Decide well !!

You can do BMS( Bachelor of Management Studies) from Xaviers Mumbai. Its online registration is going on and they have an entrance exam in the next month first week. BMS is similar to BBA.

Both are good and competitive too. You need to secure high ranks to get a good college in IP, whereas Jamia has very few seats in general category.