The directive is applicable in areas where digitisation has been implemented.
"During the inspection of some of the MSOs (multi-system operators), the authority noted that the compliance to the provisions of the regulations and directions related to the provisions of the bills and receipts to the subscribers is not satisfactory," said TRAI.
In its order, TRAI said it has asked the MSOs to "ensure delivery of individual subscriber bills, provide option of online bill payment and electronic acknowledgment to the subscriber for the payment in made, in areas where DAS has been implemented".
On the issue of acknowledgment, the order said MSOs must "ensure within 30 days of issue of this direction, that an electronic acknowledgment system is sent to the subscriber on his registered mobile number or the email address, immediately on his making any payment to the service provider."
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The TRAI order also said in case of collection of bills manually from subscribers, payment details must be sent by the collector via mobile to Subscriber Management System in front of the consumer.
In December last year, TRAI had directed MSOs to offer both pre-paid and post-paid payment options and generate itemised monthly usage details for customers in DAS areas within 15 days of the end of the month.
Cable TV networks in India have been mandated to go digital by December 2014, which entails that TV signals may be received only through STBs.
The government has already completed the second phase of digitisation, which involved digitising 1.6 crore cable TV houses in 38 cities by April 1, 2013.