B.Com

Hi Abhishek, You can apply through direct entry route in CA Intermediate after completing your graduation.

The eligibility criteria is as below.
Eligibility for entrance mode admission
Candidate must have done BA (Hons.) or BA in Psychology from any recognized university with 55% in Psychology and 55% minimum aggregate or must be a graduate/post graduate from a recognized Indian university with a minimum aggregate of 60% .
Eligibility for Merit mode admission:
Candidate must have done BA (Hons.) in Psychology and Applied Psychology from University of Delhi with a minimum aggregate of 60%.

There are many private college which offer B.Com (hons.) without Maths in class 12th, but you won't be able to run away from the subject:
The following options, you can consider are:
St. Xaviers College, Kolkata:
Jadavpur University, Kolkata
St. Xaviers College, Mumbai
St. Josephs College, Bangalore
Bhonsala Military College, Nashik
Deen Dayal Upadhyay College
Christ College, Bangalore
Ethiraj College for Women
Wilson College
Loyola College
Alpha Arts and Science College
Lady Brabourne College
Presidency College, Kolkata
Garden City College, Bangalore:
Scottish Church College, Kolkata
Dayanand Sagar University, Bangalore
Symbiosis College, Pune

Please get in touch with the college for details about the same.

PG Diploma in Mass Communication, Advertising and PR, Financial Management, HR or export as well. Basically, you can opt for management or social Science PG Diploma. You are eligible for all.

Hi Krishna, Please find the link below:
https://www.shiksha.com/humanities-social-sciences/colleges/criminology-colleges-india.

Humber College is quite a popular college, also it is very popular among Indian students. You can go for it, just check the co-op options, internship opportunities career support etc. before applying. You can write to them and ask them.

Getting experience before your PG is a good option, but as for your idea of M.Com, I don't think that experience will be needed for M.Com, so better go for M.Com.

No, its not compulsory, they runs variour programs in various fiels so, you can choose one of them.