Economics

https://www.shiksha.com/humanities-social-sciences/economics/colleges/b-a-colleges-india
Here is the list of the top college of BA Economics, kindly follow the link.

I think, you do not face any problem in pursuing MBA/PGP courses, because you have enough knowledge of Science and Economics. Top management Institutions like IIMS, DMS of IITs and NITs, XLRI, MDI Gurgaon and SPJIMR Mumbai etc. are the few B-Schools can be best suited to your profile. Please start you preparation for CAT and obtain the percentile above 95 for getting these B-Schools.

The eligibility criteria for MA in Economics at PSGCAS is given below.
Educational qualifications : UG Passed with Economics/ Econometrics/ Mathematics/ Statistics/ Business Economics /B.Com/ BBM .
So, from above you can apply here.

Hello,
Below we are sharing the preparation strategy for NTA NET Economics. Analyze the syllabus and exam pattern closely. Make a list of important topics, first cover easy and important topics. Check out the level of exam through previous year question papers. Appear for full length UGC NET Mock Test. If you find any topic difficult enough to understand even from the books, must refer your PG Notes then. Paper 1 is important so focus on that as well. Be clear with the revision strategy, revision should be on regular basis, it does not to complete the entire syllabus to start the revision. Hope it helps, Thanks a lot.

Hi
You will have to take a drop in order to switch from mechanical engineering into economics.

Hi
Yes, it is required to have maths in class 12th, else you won't get admission. Check the prospectus of the course to know about the eligibility criteria. https://www.shiksha.com/university/du-delhi-university-24642.

Hi
https://www.shiksha.com/search/?q=Economics&s[]=11&sb[]=34&sa=^0^0^0^34^11^0^0^0^0^0^0^0^sb:34
You must have maths, this is the basic eligibility for many colleges to make the students admitted in the graduation courses.