Just received the following message on my Airtel number which has an unlimited recharge plan of ₹448.

Please Note! Base tariff for your Airtel Mobile has been changed w.e.f. 22-Nov-18.
You are required to pay Rs23 or more for 28 days validity. Else you can opt for unlimited/smart recharge from your main account balance.
Dial 12151#.
Ignore if recharged

It is highly disappointing to note that TRAI (instead of helping the customers) is trying the best to bail out these top telecom companies! By asking the telecom companies to send the SMS, TRAI has officially approved and thus put an end to free incoming calls for the lifetime.

This is totally unfair!!