Gujarat

If you want to study in a foreign country then you have to work hard and score a minimum 80% in HSC because best universities take best students only. Also, you have to get 6 band in IELTS.

To get admission in an engineering college in Gujarat, of course, other than IIT/NIT, you have to appear for the common entrance test conducted by the Government of Gujarat, so marks scored in JEE Mains or class 12th board of Gujarat has no relevance.

Hello Bhumika,
Mumbai have better colleges when compared to Gujarat. Students of Gujarat try their luck in colleges of Mumbai. I remember when I was searching for a college, most of my batch mates filled form of colleges in Mumbai.
I hope I answered you. Thank you for the question.

A business analyst can demand for 6-8 LPA initially in Ahmedabad. Later, the package increases drastically.

The link given below is the link of the top colleges in Ahmadabad for MBA with contact details, call them up and they will guide you better, MBA in Ahmadabad is a crave among students. I hope you get the best.

Allinace, ABBS, SMU and Xaviers are the best institutions offering BBA in Bangalore. Check others below:
https://www.shiksha.com/bba/colleges/bba-bms-bbm-bbs-colleges-in-bangalore

INIFD is very much named institute for interior designing and offers M.Sc and B.Sc in interior design.

You won't be able to get a decent college with this percentile. You should focus on other exams like XAT, MAT, CMAT, IBSAT, etc.