Jharkhand

Hello Aryaman, You have medium chances of getting IIIT Delhi with your rank. Hence try your best at the counseling to get the college and branch you wish for. You can also use the predictor tool to know the colleges that you can get with your rank :
https://shiksha.com/b-tech/resources/jee-mains-college-predictor

Hi,
Eligibility Criteria:
Higher Secondary passed (10+2) with English, Physics, Chemistry and Biology
Percentage of Marks: At least 50% of mark in aggregate
Yes, you can apply.

Please use JEE Mains college predictor it will give you the list of college as per your rank/ marks/ percentile
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor&ved=2ahUKEwic9v7Y_aziAhUXEnIKHbvZBmAQFjAAegQIBRAB&usg=AOvVaw1N9BzFtyUCP4JU-2UQHQ0H
Good luck.

You should have completed your class 12th with good percentage to get admission for BCA in this college.
Good luck.

Being a Graduate degree you can pursue, it in Chennai itself as many North Indian students are studying here and cost of Living is also cheaper to other states.

Hi,
Visit this link to check the colleges based upon your rank:
https://www.shiksha.com/b-tech/resources/upsee-college-predictor

No, there is no chance as 83% is very low. At least you need to have 95 plus for admission in Hansraj. Delhi University usually gave cutoff more than 95%. Year by year the cut off gets increased. It is one of the top colleges under DU so getting a seat in Hansraj is quite tough as most students dream of studying in Hansraj. Demand makes it quite tough.
Good Luck.

You can check their home site to get fee details.
Generally, it falls under INR. 35,000 - INR. 50,000.

https://www.shiksha.com/college/st-xavier-s-college/xavier-s-bms-entrance-exam-syllabus
Check The link to know about the syllabus and more. Good luck.

Yes, you can get admission for BA Economics, because Maths is not compulsory for Maths. Good luck.