First round is usually a face-to-face interview with the HR Manager, followed by a written assignment (it could be anything - a press release, pitch note, communications approach for a new campaign, etc.) - to check your writing skills. If you are selected, two-three rounds (one-on-one) with the Branch Head, Account Director, and an Account Manager (one you'd be reporting to)

Fairly extensive process, you speak with HR, then you speak with at least three if not four or even five people in a series of three-ish interviews. For scheduling, they're pretty quick but you're at the mercy of the interviewers' schedules.