Vidyarthiplus (V+) - Indian Students Online Education Forum

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

For idea customers 
Email your complaints to appellate.tn@idea.adityabirla..com
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If you are a
Tata docomo user instead trying to call customer care for your problems you can send your complain through mail to listen@tatadocomo.com
They will call you within 48 hours.
I faced a problem solved by this method recently.