Meghalaya Assembly Speaker Donkupar Roy passed away on Sunday at a hospital in Gurgaon following a brief illness, officials said.
He was 64.
Roy, a former chief minister of Meghalaya, was first admitted to a state-run hospital in Shillong before being referred to the Medanta Hospital in Gurgaon, Haryana, where he was undergoing treatment for the last 10 days, his family members said.
His condition deteriorated after suffering multi-organ failure on Sunday afternoon, they added.
"Dr Donkupar Roy has passed away today at 2.40 pm at Medanta Hospital, Gurgaon. He was hospitalised there on July 18, 2019," a statement from the Meghalaya assembly secretariat said.
A senior doctor at Medanta Hospital told PTI: "He was brought to our hospital on July 18 and succumbed to multi-organ failure at 2.43 pm today (Sunday). His body has been handed over to the family."