i am attending an interview and they want me to apply for business short stay schengen visa.i am planning to visit zurich as my friend is there. So, after interview i am planning to go to zurich, stay there for 2 days, return back to amsterdam and fly back to india. Is this possible with this visa?
Yes, this ought to be okay. The interview is plainly still the main purpose of your visit to the Schengen area, and visiting a friend is incidental to this purpose. So you should apply to a visa from the Netherlands -- once you're in, there will be nothing stopping you from making the side trip to Switzerland.