Telecom operators now offer a technology called eSIM, which can replace physical SIM cards. The eSIM can be downloaded via a smartphone, which means you don't need to buy an extra SIM to use services. All private telecom operators like Reliance Jio, Airtel, and Vi (Vodafone-Idea) allow their users to use this facility. However, users have to follow these steps to avail eSIM cards.

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