B.Com

After completion of 12th standard in commerce, you can apply for government sector jobs like group D exam.
The eligibility criteria for Group D post:-
1) Those candidates who have completed 10th standard from recognized board are eligible for Railway Group D post.
2) Your minimum age should be 18 years.
Yes, you can do graduation degree simultaneously but your degree must be part time course. Still you can apply in B.Com or BBA.

Hi,
You may refer the link below for the list of b.com colleges in Ahmedabad:
https://www.shiksha.com/accounting-commerce/colleges/b-com-colleges-ahmedabad

Hi,
You may refer the link below for the list of b.com colleges in Ahmedabad:
https://www.shiksha.com/accounting-commerce/colleges/b-com-colleges-ahmedabad

Hello Ayushi! An MBA pursued from a top B-school is always beneficial and more valuable in the market; it also leads to good placements. Kindly visit this link to know the top B-schools in India. https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india/2-2-0-0-0
P.S. In case you have no idea about the different entrance exams you can appear for to get into any one of the above mentioned B-schools, visit this one: https://www.shiksha.com/mba/articles/20-mba-entrance-exams-you-can-take-this-year-blogId-11473

Yes, of course you can and if you have good cat score than your academic record and overall personality, communication skills and knowledge will be main point to get the seat in good B-school.

Hi Ajinkya,
Choosing a particular subject is absolutely upon you.
Depending on your capabilities, passion and aim you have to choose it. If you want to be in the field of media or advertising then go with the latter one. If this is not your aim then choose computer.
My suggestion would be advertising. It's really interesting.