"He (Singh) is stable but the doctors will not let him leave until the trend is downwards," Singh's spokesperson Sudhanshu Trivedi told PTI.
Singh, who has been in New York for almost a week, went for further tests to the hospital yesterday but then later returned to his hotel near the United Nations, he said.
The 59-year-old leader was yesterday supposed to leave New York for returning to India.
Singh had spoke at the UN about India's concern on terrorism on Wednesday. He had later in an interview to PTI said countries like Pakistan that have terrorists operating in their territory should be declared as "rogue states".
(Published 08 October 2010, 03:08 IST)
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