Chill brothers! Such things keep happening across platforms even with bigger broadcasters. Things get sorted sooner or later specially incase channels in question have decent viewership.
No comparison of airtel with d2h, former has almost each popular sd or hd channel while latter has fallen behind on all fronts since takeover by dish tv. Just wait a little airtel will sort this issue and add other pending channels too.
Watch other channels till then and have a good time or surf ur favourite content on internet. I am sure u won't miss out on anything u seek.