UPDATE : Bitrefill Brings Mobile Credit Buying with Bitcoin to 113 Countries
Services supported in India
This website has logo of airtel as a telecom partner.Its says working in 112 countries. 
http://bitcoinwireless.com/
Now recharge mobile phone with bitcoins and litecoins
https://www.mobileshop.ph/
http://www.bitmoby.com/
Well! add http://www.piiko.com to your updates Services supported in India
Now recharge mobile phone with bitcoins and litecoins
https://www.mobileshop.ph/
http://www.bitmoby.com/
which providing mobile recharge with BTC over 400+ operators (they said)~Rude Boy