i think airtel iptv is currently available in limited areas in delhi ncr region.
i guess mumbai would be the next target. it requires good quality wiring as 8mbps data transfer is required.
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as for availability.... do not worry about that aspect.
i have 2 iptv connections at my place. one of them is here since february.
i still get a call from airtel call center EVERYDAY at around 9:30AM asking me to get the IPTV connection.
it is so darn irritating that i know the call is from airtel when the phone rings.
i pick it up and directly say, if u want to sell me IPTV, i am not interested.