AirAsia India is a joint venture between Tatas, which own 51 per cent stake, and Malaysia's AirAsia Berhad.
"There is an ongoing investigation against certain former personnel of AirAsia (India) Ltd involving irregular personal expense claims and certain company charges. This has already been reported to and discussed at the previous board meeting of AirAsia (India) Ltd," the airline said in a statement.
Noting that the airline, AirAsia Berhad and Tata Sons look into all allegations of impropriety and misappropriation very seriously, the statement said the three entities do not approve of any unethical practices and would take very stern action against the perpetrators at all levels of the organisation.
"The three entities would like to reiterate that they strictly adhere to internal procedures and policies," it added.
A day after being sacked as Chairman, Mistry in a letter to Tata Sons Board on October 25 raised "ethical concerns" in AirAsia India and alleged that forensic investigation revealed fraudulent transactions of Rs 22 crore involving non-existent entities in India and Singapore.
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