Who is Parag Agrawal? This is the common question being asked around. Twitter's Chief Technology Officer is now the Chief Executive Officer. An alumnus of IIT Bombay, his rise to the top job was waiting to happen with Jack Dorsey and Twitter working their way for Dorsey's departure for over a year. So what does this mean for Twitter? What does the micro-blogging platform have in store with Agrawal's appointment? Watch to know more