Airtel has revised its voice and SMS-only recharge plan prices following the introduction of new prepaid options, in line with TRAI's guidelines announced last month. The operator quietly updated the prices of both voice and SMS-only special tariff vouchers (STVs) soon after TRAI announced it would review the new vouchers. Airtel had previously updated its existing STVs with data allowance to include the new recharge vouchers.

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