Karan Johar is all set to return to small screen, with 'Koffee With Karan Season 6' Tonight. Notably, the first episode will be graced by Alia Bhatt and Deepika Padukone as the opening guests. Interestingly, both the divas have been quite reserved about their personal lives so far. But on KWK6, Deepika-Alia will go candid about their lives. Here's what is expected.