Contact your mobile network provider’s customer care or visit an official store
Request a SIM replacement or duplicate SIM for your existing number
Verify your identity using required documents such as ID proof and address proof
Provide account details, registered mobile number, and any security verification asked by the provider
Pay the replacement fee if applicable
Collect the new SIM from the store or receive it by courier, if offered
Insert the new SIM into your phone and complete activation as instructed by the provider
Wait for the old SIM to stop working and the new SIM to become active
Keep the replacement receipt or reference number for follow-up
Ensure your number is registered in your name before requesting replacement