Why UPI, OTPs and banking services become unavailable for 24 hours after SIM change or eSIM move
Users changing their SIM cards or shifting to an eSIM might temporarily lose access to banking OTPs, UPI apps, and SMS alerts for nearly 24 hours. While many users often mistake this as a network issue, the restriction is actually a security measure designed to prevent financial fraud and unauthorised access to bank accounts.
Why do SMS services stop after a SIM change?
According to TRAI, telecom operators in India are required to block incoming and outgoing SMS services for 24 hours after a SIM replacement, SIM swap, or eSIM transfer.
