My Thoughts !

Who will get affected by this? In my opinion:

(*) People invested in DTH. This Insat was supposed to boost the transmission of DTH. Now we have to depend on your local cable operators/SCV/Hathway
(*) People who bought trasnponders. They have to switch to Plan B
(*) ISRO. Their plans to commercialize the satellite launching will get affected by this
(*) Met dept. Insat was also meant for meterological imaging.

Good thing that GSLV is not the carrying vehicle for India's mission to the moon:Chandrayan. PSLVs will be used.