Computers & IT (Non-Engg)

Yes, you can, but you have IP subject in class 12th. Otherwise, you can't have entrance also. And, more on that is difficult for you to solve maths. Even, I was also ex-IP student, and in entrance I don't solve one single question in Maths section. So, that will be better, if you go for coaching of 1-2month for Maths. Best of luck.

No, Hansraj College does't offer BCA courses. Instead, it offers only B.Sc (H) computer Science.

Hello dear, go through this link hope you may find it out helpful. https://www.shiksha.com/b-tech/resources/ggsipu-college-predictor
Best wishes for your brighter career.

Hello dear, go through this link, hope you may find it out helpful. https://www.shiksha.com/b-tech/resources/ggsipu-college-predictor
Best wishes for your brighter career.

Maths is mandatory for BCA. You can't apply without maths.

Try to solve NCERT books thoroughly.

Yes, you can do it without any doubt. It will be easier for you as you already a computer Science graduate.
NIT (s) ask for maths as a subject in your 10+2 or graduation level. Rest, there are many universities which doesn't even consider Maths as a criteria.

You can't pursue B.Sc, if you are a commerce student as it takes students from Science stream only. But, if you really want to do B.Sc in CS or any other subject, you have to do class 12th again with Science streams from private state boards or NIOS.

Check the below list of exams-
NABARD Grade A and B Officer
SBI PO
SBI Clerk
RBI Grade B Officer
IBPS PO
IBPS RRB Officer Clerk-1
IBPS RRB Office Assistant
NABARD Office Assistant
RBI Office Assistant
Please check the below link for more information-
https://www.google.co.in/amp/s/www.shiksha.com/articles/amp/important-banking-exams-in-india-blogId-6441.