Both of you'll are getting channels on this tp because, in general, your signal quality is always in green bar(and above BER-06) & when 11480 tp became weak, channels quality in that got reduced to yellow bar...
But in my case & others, it is yellow most of the time, so this TP channels' quality is in red i.e. below BER-02 & hence no signal.. No further alignment is possible in my case at least.
So airtel should do something about it..