As per media reports, the Indian wrestler was beaten up by foreign fighters in the ring although the exat nature of Khali's injury wasn't known.
The 44-year-old wrestler was up against three foreign fighters who smashed him with chairs and landed numerous punches over him. He was immediately rushed to the hospital.
He was, reportedly, attending the first event of 'The Great Khali Wrestling Show' at Indira Gandhi International Cricket Stadium when the incident occurred.
As per a report published in a Hindi daily, Khali was admitted to ICU division of Brijlal Hospital where he's be under observation for the next 24 hours.
Khali suffered injuries on head and also reported of back pain.
The wrestler was, however, released from the ICU on Thursday evening, though he sustained some head injury.