Remember the times when erstwhile Tata Sky performed maintenance activities every other week and ultimately later on its subscribers got the happy news of additional bandwidth being made available alongwith many new channels and other things.
Airtel is also likely performing such maintenance activities to expand its offerings as well as employ various other tech related infrastructure to improve the quality of service and put bandwidth + other things to optimum use so that subscribers get best experience.....nothing to poke fun at if one tries to understands things from a wider perspective