Activating a new SIM involves more than simply inserting the card into your phone. Depending on the operator and connection type, you may need to complete KYC, verify your details and wait for the network to become active. The process is different for eSIMs, which require you to request and download an eSIM profile on a compatible device. This guide explains how to activate physical SIM cards and eSIMs in India, troubleshoot common activation issues, and understand what happens to your old SIM.
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