India’s markets regulator Securities and Exchange Board of India (SEBI) is investigating possiblee instances of insider trading at salt-to-software conglomerate Tata Sons and its group companies.

According to an Economic Times report, Sebi is studying the group’s corporate structure and its subsidiary companies to see if they were in compliance with the country’s insider trading rules. Under insider trading laws, which are punishable offenses, family and non-board company executives should not be made privy to strategic information that can significantly impact the stock price of the company such as an acquisition or a sale before such information has been made public and approved by the board.

Specifically, Sebi is said to be examining if strategic information was leaked to Tata Sons directors and Tata Trusts nominees before the information was approved by the companies’ boards, said the ET report.

Tata Sons Former Chairman Cyrus Mistry has alleged that key certain Tata Trusts trustees were present when Tata Power’s CEO made presentations to Tata Sons board on its proposed acquisition of Welspun Renewables.