From here in rural central Alaska, I've heard about a dozen AIR frequencies. The best frequencies as of late at 9870 and 11620khz producing pretty strong signals with good audio most of the time.
I submitted reception reports for 4895khz, 4920khz, 5010khz, 5040khz, 7550khz, 9380khz, 9870khz, 9950khz, 11620khz and 12025khz.
Here's an example of one signal, 9870khz, the AIR Vividh Bharati Service:
https://www.youtube.com/watch?v=H6JkPlp_IMMHere is AIR 11620khz:
https://www.youtube.com/watch?v=r8cXEQZBUDUMore of my reception clips are at
http://www.youtube.com/user/OnAirDJPaulWalkerBack of the All India Radio QSL cards:
http://i.imgur.com/YpH5sxh.jpgFront of the All India Radio QSL Cards:
http://i.imgur.com/PcwOLkU.jpg