Here's something I thought I should share with you. Please look at the image below which is self-explanatory.
Essentially you can book (limited seats of course) during 2100-0000 hrs everyday for next day travel at steeply discounted fares (I assure you of real low fares.)!! As of now, this scheme is for airbus sectors (metro routes such as Bangalore-Delhi etc). Information on this promotion has not been released in mass media yet and most probably it wont be. Air Deccan is promoting this scheme through limited channels.
So please take advantage of the scheme by booking your tickets at www.airdeccan.net!