If we have complain about of mobile carrierrs(sim operator like airtel,aircel)we make call to customer care and if That call too not satisfied for us we can contact nodal officer .i provide some major company address can be useful for us.
Aircel - nodalofficer_chn@aircel.co.in
Reliance - rcomnodalofficer.chennai@relianceada.com
Tata - nodalofficer.south1@tatacommunications.com
Aircel - nodalofficer_chn@aircel.co.in
Reliance - rcomnodalofficer.chennai@relianceada.com
Tata - nodalofficer.south1@tatacommunications.com