Airtel — unable to make a call to toll free number

Address:

Pillayar kovil street, Tirunelveli, Tamil Nadu, 627751

Hi,

I am trying to connect to a toll-free number:[protected] but i am constantly getting message as "the number doesn't exist", whereas my friends who have airtel connection was able to make a call successfully to the above number. I even tried with 2 airtel connections and received the same response. I am expecting a reply as soon as possible for this issue

Regards,
Aswin