Accounting & Commerce

You can appear for government exams along with a job and while doing an internship also. It doesn't matter as you need to be prepared for those exams to write them.

If you are interested in doing accounting job then you can do a job under CA firm and after that, you can do a job with a company regarding accounting.

MBA is important only to get a good job in reputed companies & B.Com is all about getting into a good college for MBA.
That's why I would suggest you to choose a good college instead of whenever. Also, the good college you find needs to have a good infrastructure and a good & healthy environment.
As you are interested in colleges in Uttar Pradesh, there are a number of colleges there. You can make a list of colleges and evaluate the best one.
Moreover, if you don't want to do B.Com from a good college, take admission in private B.Com and start preparing for CAT to get into the best colleges for MBA.
Best of luck.

I guess application date for DU is still not here, because lot of my friends are waiting for it. And, for IP I'm not sure, but I guess it's still on, because one of my friends applied for it. Check for offline application. Their dates lasts longer than online.

DU, JMI and GGSIPU are the best for Delhi and PU and CU are the best for Chandigarh.