Facebook's Thumbstoppers campaign - short stories move hearts is designed to encourage brands and marketers to move towards a shorter 10 second format story telling in advertising. Taking this initiative a step further Facebook is now partnering with Kiran Rao to showcase the magic of storytelling in mobile advertising. To understand what this partnership is all about, CNBC-TV18 spoke to Sunita GR head of marketing Facebook India and Kiran Rao.