Accounting & Commerce

You can find the previous year's cutoff details here: http://www.iimrohtak.ac.in/addmission/wat-pi-2015.html .
Yes, there are a fair number of students from commerce background, in fact, I am one myself.

The more you study, more opportunities will rise eventually and more successful you will be.
But with all this, career skills can be improved by giving emphasis on:
-Communication skills (Listening, writing and speaking).
-Adaptability to difficult situations.
-Researching on fresh topics related to your field.
-Tactfulness
-How comfortable and the meaningfully you represent or put your point, etc.
Good luck!

You can go for a full time job in various organizations. May be, entry level jobs will be based on your profile.

Other than CA and CS, you have ICWA and CMA which are also professional courses. You can do one of them. But you need to have patience and very hardworking.
Or, do an MBA in a reputed college after B.Com.
Or do M.Com after B.Com.

You are advised to evaluate doing B.Com in Delhi University affiliated colleges.