I have read about the queuing feature in unlimited recharges by Airtel. In this feature it was mentioned that I can purchase recharges from unlimited packs and it will be queued to be used after end of current plan validity. So hearing about the possible increase in charges by various mobile operators including Airtel. I just tried to recharge one of my number with annual recharge of Rs.1699. But it was not queued as mentioned on some news sites. 

It started immediately, and 1 day already counted for today. Pack validity is now 364 days.