IndiGo on Thursday signed a one-way codeshare agreement with Qatar Airways, allowing it to book seats on the former's flights.
The stock of India's largest private sector airline declined 2.22 per cent at Rs 1829.35, on the BSE.
Gangwal said the board has now approved a new related-party transaction policy and to also close an open issue.
The differences between the two promoters came into the public after Rakesh Gangwal had sought Sebi's intervention.
Gangwal last month alleged violations of corporate governance rules at InterGlobe, calling for India’s securities regulator to intervene.
In July, Rakesh Gangwal flagged concerns over alleged corporate governance lapses at InterGlobe Aviation.
Sebi and the corporate affairs ministry are looking into the alleged governance lapses at InterGlobe Aviation.
The board discussed about appointing a woman director, said CEO Ronojoy Dutta.
The company will respond to MCA within the prescribed period," the filing said.
The scrip of the company had fallen 4.17 per cent to Rs 1,300 during the day on the BSE.