The airline had on May 9 said the boy was denied boarding as he was visibly in panic.
The Directorate General of Civil Aviation (DGCA) is probing this incident and it said appropriate action will be taken.
Airline major IndiGo launches 100 flights connecting key domestic metro cities and regional centres, starting from March 27.
As many as 60 airlines from 40 countries have been permitted to operate 1,783 frequencies to/from India during the summer schedule.
Gangwal and his related entities own around 37 per cent stake in this company. Rahul Bhatia and his related entities own around 38 per cent in InterGlobe Aviation.
Airlines, whose profits have been ravaged by the coronavirus pandemic over the last two years, were seeing signs of recovery when the Omicron variant disrupted travel late last year.
Both jetliners were believed to be at an altitude of 3,000 feet when the incident took place.
The steep fares have holiday visitors from Bengaluru planning a return trip from Thiruvananthapuram fuming.
The airline will operate ATR aircraft for direct flights from Gwalior to Delhi and Indore from September 1 onwards
The passengers can make unlimited changes on domestic tickets booked in the mentioned period.