Tata Indicom site has the following notes :
Note for Pay per call Plan :
1. Each local call to be charged at Rs 1 for 10 minutes & each STD call to be charged at Rs 3 for 10 Minutes
2. Pulse for Local & STD call will be 600 secs
3. Pulse for Roaming calls will be 60 secs
4. This new starter kit allows keep talking benefit only with thepurchase of a new handset on the tata indicom network , if sim is usedwith old & used handsets , the default tariffs of Rs 1/min forLocal calls & 1.5/min for STD Calls . Local SMS @ Rs1 &National SMS @ Rs 1.5
5. As a special promotion , customers will enjoy an extended pulse of3600 secs for all local calls for first 15 days from date of activation
6. Daily rental to be charged at Rs 1 per day
7. Keep talking plan is a stand alone plan & can not be coupledwith any other special offers which has free talk time or free minutesbuilt in.