Chandigarh,  The health condition of Covid-hit former India sprinter Milkha Singh has deteriorated with fever and de-saturation, the doctors said on Friday.

The legendary athlete is undergoing treatment at the PGI hospital in Chandigarh. "His condition has deteriorated with oxygen levels stipping," said a doctor of the hospital.

His daughter, Mona Milkha Singh, who is also a doctor, is monitoring his health.

The 91-year-old had contracted the virus last month. His wife, Nirmal Milkha Singh, had succumbed to the virus on June 13.