Had an AC seat booking, but couldn't find any AC inside the bus. According to the related travel agency, AC's don't run in winter season, hence though the bus was AC type, AC will be kept off. But seriously, I couldn't notice any AC source(maybe my fault), but yes, the AC was indeed kept off. Therefore I had wasted a 100 bucks on booking an AC seat. Also, the related travel agency says that AC and non AC seats cost the same, and only differs when booked online. Will make me think twice before making an online booking next time.