I think same issue with your packaging as the thread starter Imrahn had.
You shall also go for Magnum HD if interested in watching all the HD & SD channels without any other rearrangement. This will certainly reduce the price and you don't have to worry about any extra channel subscription.
I don't know what blunder Airtel is doing now a days!! I checked various Magnum Packages and it seems Airtel has increased the price from 590 to 650, but still I can see old Magnum HD package appearing. If we see the number of channel listed in these packages; higher package have less number of channels
Anyways, but I suggest you do it online to save money.
First of all follow the process mentioned in
post no. 4.
And then subscribe to the highlighted package as in below screenshot.
Please note, there is no difference in South Magnum & Non-south Magnum. Both have same number of channels including all HD and SD except PPV channels, HBO Hits & HBO Defined.
Just try it how it goes for you.