In the backdrop of InterGlobe Aviation Ltd's co-promoter Rakesh Gangwal's counsel writing a fresh letter to the Securities and Exchange Board of India (Sebi), the markets regulator has sought a response from the company regarding corporate governance issues. Gangwal's letter was sent to Sebi on August 30, days after the firm's annual general meeting on August 27, where the resolutions were voted in favour of by both the sparring promoters.