Colleges in Uttarakhand

Hi Molly John,
Yes. Science is mandatory in 12th with 50% marks.
Mandatory Subjects in 12th: Chemistry, Physics, English, Biology / Biotech/ Health Care Sciences
The aggregate percentage must be in Physics, Chemistry and Biology/ Biotechnology/Health Care Sciences, taken together and also in aggregate.
Age: Minimum 17 years | Maximum 27 years

Everything is good. So, if one is expecting to get a good education and wish to see scenery everyday and looking for good weather and good seniors. This is the best place to study.

A full time course will be better. If you are not able to pursue it, then I would suggest UPES for distance MBA. They have good courses and are related to your field.

Amity, ICFAI and IGNOU are better than SMU by a far margin. The SMU is the worst University to pursue any course now. Even their recognition was revoked but later reinstated.

The Distance Education from SMU is the worst among all. If you are pursuing a regular course, then it is all right, otherwise choose other college for BBA.

Both the IIT's are good, but in my opinion IIT-Bombay is better than IIT-Roorkee, because IIT-Bombay provides good quality of faculty members with good course curriculum.

There's no cutoff with respect to your graduation scores while applying. So, yes you can apply.
As far as chances of getting a call are concerned, it depends solely on your CAT score.
Good luck and prepare well!