Yet, this has earned Rs 8,185 crore (Rs 81.85 billion) for operators in the three years ending March 2012, says the department of telecommunications.
Surprisingly, it is not the country's top mobile operator, Bharti Airtel, with 186 million subscribers, or Vodafone India, the number two with 149 million users, which top the charts.
The telco making the biggest amount from caller tunes is Idea Cellular, which began the service in 2004.
It has earned Rs 2,877 crore (Rs 28.77 billion) from this in these three years, followed by Bharti Airtel at Rs 2,088 crore (Rs 20.88 billion.
DoT’s data is based on inputs from the Telecom Regulatory Authority of India and service providers.
During the period, Vodafone earned Rs 1,521 crore (Rs 15.21 billion), followed by Bharat Sanchar Nigam Ltd with Rs 689 crore (Rs 6.89 billion), Tata Teleservices at Rs 407 crore (Rs 4.07 billion) and Aircel at Rs 230 crore (Rs 2.3 billion). “Caller tune is the second biggest revenue earner for telcos among other value added services , after SMS,”
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