His condition is stable, an AIIMS official said.
The 63-year-old minister of youth affairs and sports had come with symptoms of high fever and cough and has been diagnosed with chest infection, the official said.
He is in a private ward under Dr Randeep Guleria, AIIMS Director and a renowned pulmonologist.
"Of late, he has been travelling a lot and the chest infection could be due to overexertion or exposure to infection," an AIIMS doctor said.
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