What irresistible lure of fiction makes someone who's already engaged in two demanding careers take on a third - the tough and often lonely task of writing a novel? Is it the search for a new voice or the call of a higher imagination that has to be answered? Influencer and actor Prajakta Koli, who has over 17 million online followers, has chosen to enter unchartered territory with her first book.  She talks to Tarana Raja about her need to break new ground.