Hi,
I am applying for Swiss Visa on monday (14th), in India. Applying for business Visa. Can anyone inform me how long will it take to get my Visa? I plan to start traveling on 19th..which means I should get Visa by 18th max..will it be possible?

Try this website: http://www.learn4good.com/travel/swz_visa.htm

This page does explain two ways of getting a visa in Mumbai.

The first way takes five days. It doesn't give a time for the second but it does state that a visa cannot be granted on the same day as application.

I can only guess or offer you how long it took for us (which is different circumstances, so likely different outcome). We applied on January 1st (from here) and received it 6 weeks later.

You want to apply for a visa on Monday and get it back on the Friday (4 working days later)? Good luck. If this is your first trip to Europe then it's extremely unlikely, as they'll want to interview you.