Hi Nishant, what exactly is the use case here ? Once you have selected a contact and account during the initial customer search process, there are many other pages and such built up for the context. Redirecting you to the Contact Search page would break a lot of that functionality. It seems like you might want to start a brand new interaction rather than going back to the contact search screen.
You could do it by changing the flow, but you would have to reset the context - all the top level clipboard pages or data pages that refer to that contact would have to be cleared so you could create new ones with the new search. The pages under the pyWorkPage would also have to have the context reset as well.
A simpler solution would be to do what Amit described - wrap up and search again.