Bharti Airtel and Vodafone Idea Ltd, whose self-assessed dues to the government are less than half of the estimates of the department of telecom (DoT), must disclose the areas of difference as minority shareholders deserve to know, an analyst report said.

While Bharti Airtel has estimated its dues arising from a Supreme Court ruling that asked for non-telecom revenues to be included in calculating the spectrum charges and licence fee at Rs 13,004 crore, the DoT puts the estimate at Rs 35,000 crore.

In the case of Vodafone Idea Ltd (VIL), the DoT is seeking over Rs 53,000 crore, while the company estimates its dues at Rs 21,533 crore.

“While we appreciate the matter is still sub-judice, once the legal chapter is over, Bharti and VIL could (and should) disclose their self-assessment workings, highlighting the areas of difference versus the DoT math. Even as this isn’t a statutorily mandated disclosure, we believe the minority shareholders deserve to know,” Kotak Institutional Equities said in a report.

Stating that there is a case for better disclosures on the math from both the DoT as well as the operators, it said a detailed explanation of the calculations post the closure of the legal proceedings is a must.

“It would go a long way in inspiring confidence among the minority investors,” the report said.

Vodafone has so far paid Rs 3,500 crore out of its self-assessed liability of Rs 21,533 crore, while Bharti Airtel has paid Rs 13,004 crore to the government in two instalments. It had also deposited an additional Rs 5,000 crore as an ad-hoc payment to cover any reconciliation differences.