Chennai

Hello Rishi, Your scores are decent but Loyola requires still more better score. There is also a heavy competition and reservation for selected people. Hence you may try your best to get a seat at Loyola. All the best !

Hi,
Eligibility
Candidates must have passed 10+2 with Economics, Commerce, Accountancy or any other from any recognized board.
For more details information you can see below link
https://www.shiksha.com/humanities-social-sciences/economics/course/b-a-in-economics-loyola-college-lc-chennai-nungambakkam-8

Yes, you can get admission in either EEE or civil branch in Coimbatore, Bangalore or Chennai. Your rank is enough to get you a seat. You should participate in the counselling process.
Best of luck.

MT Educare and KS Academy are good options.

He can get in aeronautical engineering, if the fees the list think so is only for 100 students.

Students who wish to pursue M.Sc and MA programs must hold a Bachelor’s degree in relevant discipline from a recognized board. For admission to Integrated B.Sc + M.Sc program, candidates must have passed Class 12 or equivalent from a recognized board with Mathematics and Physics as compulsory subjec

Please visit this link this is college predictor hope this will help you
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.

Yes, Maths is always compulsory if you're opting for B.Com (Hons.) otherwise for B.Com (programme) it is not compulsory.

Yes, you will get seat for BE.CSE course Chennai at Tamil Nadu. Also, follow this page to check your score and eligibility details more better.
https://www.shiksha.com/tags/jee-mains-percentile-tdp-847953
All the best.