B.Com

If your name appears in the merit list:
You have to come personally to the college in Pune for admission within the prescribed working days from the date of declaration of particular merit list. So, an interview may or may not be there.

No.
I am sorry but you have to have to go through CAT or XAT.

SD College in Chandigarh is famous for B.Com but it has a high cutoff of 96% and then comes DAV with 93%.

Yes, you can change but it depends on your college that at what point of year it allows you to do so.

To be able to secure a seat in the UG courses offered by Mahatma Gandhi University, the aspirant must have cleared 10+2 or equivalent exam from a recognised board with a minimum of 55% marks.

If you opt for B.Com (Hons.) then Maths is compulsory for admission, not only for Hindu College of Delhi University but also for other colleges.
But if you are opting for B.Com (prog.) then Maths is not compulsory for every college of Delhi University.

The courses you specified are the soul of commerce stream even then you can opt for hotel management, event management or fight for competition exam (bank, government job).

Hi,
It all depends upon from where do you want to do your MBA. From Uttar Pradesh itself or outside the state. Please check the colleges providing this programme in your state as well as other states and choose the best suited one.