MTNL Duplicate Sim | Lost Sim | Replace Sim

MTNL Duplicate Sim | Lost Sim | Replace Sim First block your current MTNL phone number: If your mobile is lost-stolen, immediately block your mtnl SIM by calling customer care 1500/1503 (from mtnl phone)/18001801503(from other networks). Customer care executive will confirm your address, phone number etc in-order to check   the authenticity of the call. Visit nearest mtnl Customer Service Center

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