Sidharth Malhotra and Alia Bhatt a couple?

When she was a part of Karan Johar's chat show, Alia Bhatt had said that Sidharth Malhotra was husband material. Ever since the two were spotted returning together from a New Year's eve break, tongues have been wagging. They, however, prefer to be discreet. At a recent awards event Sid said, "I don't know about her, but I am surely single." While Alia prefered to stay mum. Hmmm...