"He was admitted on Wednesday afternoon. He has suffered a minor brain haemorrhage after falling down at his home," said a doctor on the condition of anonymity.
The 76-year-old Congress leader from Kerala was the defence minister during the UPA regime. Having served for more than seven years, Mr Antony is the longest serving defence minister of India.
Earlier this month, he had criticised the centre for not accommodating the Rohingyas and cited the example of former Prime Minister Indira Gandhi who "insisted on protecting" refugees from Bangladesh.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)
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