Mumbai

It is not possible for you to get admission in any of the colleges until you complete your 12th. Therefore, if you clear 12th maths' compartment then you can take admission in any degree in any college.

It is quite difficult for you to get admission in JJ School of Architecture.
It's better to try in some other B.Arch colleges.

Dear Mohd,
Please refer the below link to see the colleges in Mumbai for B.Sc studies.
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/science/colleges/b-sc-colleges-mumbai-all&ved=2ahUKEwiU-aqQlcriAhVPfH0KHcHUAdEQFjABegQIAxAB&usg=AOvVaw1rx9fW0Vuqc8YHTLbl-JnW.

Hello,
Here is the list of some good colleges in Mumbai and Pune –
JBIMS
SIBM Pune
SCHMRD Pune
SP Jain
KJ Somaiya
SIMSREE
NMIMS Mumbai
TISS Mumbai
Shailesh J Mehta Institute Management

Hello,
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-mumbai-all/2-2-0-10224-0
Visit this link to know about the top-ranked MBA colleges in Mumbai.

No, it is not compulsory to have maths in class 12th for BA Economics. You can apply for admission. Good luck.

I would suggest IGNOU's MBA. Regards.

KJSCE Mumbai is a Gujarati Linguistic Minority college and 51% of seats are reserved for these. 20% of seats are filled through the Common Admission Process (CAP) conducted by DTE Maharashtra and remaining 15% seats are institute level seats and filled through the management quota. So if you have MHT CET or JEE Main score then apply through the DTE Maharashtra website for admission.