Toll Free Numbers in India

Toll Free Numbers in India -

Acer - 1800 11 6677
Air India - 1800 22 7722
Compaq - 1800-425-4999; For Technical Assistance - 1800-11-2267
Dell - 1800-425-4026
HP - 1800-425-4999
HTC -
Jetair -
Kingfisher -
Microsoft -
Netgear - 1800-425-4327
Nokia -
Spice Jet -
Oberoi Hotels - 1800-11-2030
WorldSpace -

PS: Will be updating the list soon. Kindly comment if you find any of the entries not working/incorrect. Some numbers beginning with 1600.... might not work.
In that case you can replace 1600... with 1800...

DISCLAIMER -

Though Toll Free Numbers are supposed to be free for callers, please confirm with your telecom service provider. Generally for MTNL/BSNL customers these numbers are free but for Airtel, Reliance, Tata, etc. they might not be free.