B.Com

Admission is based on academic performance in your undergraduate degree programme in any stream. Those who have taken the CAT, MAT and the GMAT exams and have achieved the following cutoffs are exempt from the written test, but may be required to take the interview at the discretion of the admissions office:
CAT 70 percentile
MAT 600
GMAT 500

You can check the papers on:
http://jmi.ac.in/cccp/last_year_paper

In Delhi University, they say every college is good, but only 2-3 colleges are actually worth, including Shaheed Sukhdev College of Business Studies (SSCBS), SRCC (Sri Ram College of Commerce) and Shaheed Bhagat Singh College (SBS). But, these are only cut off based, I.e. merit based. If you're interested in entrance exam based, you might go for GGSIP University, Jamia Milia Islamia or private universities like Amity University, Galgotias, etc.
DU is ranked on the top of all the universities.

Yes, you can pursue, provided you are very hardworking and have a lot of patience.
All the best.

Dear,
If you want to continue in same industry then you may consider these options:
Advertising
MBA in international business or marketing
Journalism
PR and event management
All the best.

Yes, obviously. I don't know about other states but in Jharkhand, you can easily do B.Com (Hons) without maths in HSC.

Hello,
It is good that you want to start your career in banking. For this, you need to give the banking exam like IBPS clerk, SBI clerk and many other.
To know the complete details, you can look: https://www.eduncle.com/ibps-clerk-recruitment-exam
To become the bank clerk, you must have the following quality:
Bank clerk should be:
I. Friendly
ii. Knowledgeable in banking operations and computer (core banking solution)
iii. Expert knowledge of bank's products to brief and guide the customers
iv. Pleasant and courteous behavior
v. Accuracy
vi. Speed
vii. Prompt and punctual in service

Hello Raghu Ram,
After completing your B.Com, you can make career in the field of your interest.
If you want to study further, then there are too many options available like : CA, CS, MBA, M.Com, etc.
But if you want to do a job, then you should start preparation for government job exams like banking exams (PO, clerk, RRB etc.), SSC exams (CGL, CHSL, etc.)
It will be a great option for you.
You can check the syllabus of bank clerk exam here : https://scoop.eduncle.com/ibps-clerk-syllabus-exam-pattern
I hope it will help you.
Best of luck.

Dear,
You need to check the new guidelines of DU SOL for reappear for 1 subject after many years as they have changed many rules.
All the best.

As per the university, you can be promoted only when you pass in 4 subjects of final year B.Com.