UPSC

Yes, if you have 59% in your UG then you could definitely apply for MBA.

Yes, actually to appear for UPSC exam, the minimum qualification required is a Bachelor's degree.

Hello Shrishti,
Both CAT & UPSC exams have a different level of difficulty. Don't get confused. Know what you want to do. Since you will require complete dedication to clear either one of them.
Go through the syllabus thoroughly and then decide.
Good luck!

You can do engineering and then appear for Civil Services Examination conducted by UPSC.

According to rank:
1.DTU
2.MNIT
3.IIIT, Allahabad and
4.NSIT.

As per my knowledge, anyone from any background can opt for UPSC exam.

Hi Farheen, UPSC exams can be taken by students from all disciplines however coming from a commerce background you can opt for a Bachelor of Economics program, Economics on the whole covers a huge chunk of topics in UPSC exams. However keep your interest and aptitude when you choose the program. You must excel in your academics. Another option could be B.Com/LLB.

That's a great idea, if you can manage your engineering and UPSC preparation at the same time nothing better than that and in 4 years you will acquire lot of knowledge.