Assam Pradesh Congress Committee president Anjan Dutta died on Thursday morning at the Aiims hospital in New Delhi following cardiac failure.
Dutta, 64, was admitted to the hospital on May 18, and was under treatment at the department of Pulmonary Sciences.
He was initially admitted to the Apollo Hospital in New Delhi on May 12 with complaints of severe chest infection.
He died due to cardiac failure at 7.11 this morning, Dutta’s close relative Geetartha Darshan Baruah said.
The Congress leader leaves behind his wife and three daughters, one of whom had unsuccessfully contested the recent assembly elections in Assam.
Congress vice-president Rahul Gandhi had met him on May 25.
Dutta, a close confidante of former chief minister Tarun Gogoi, was a cabinet minister handling several departments including transport, in the state in the past.
He had been holding the post of APCC president ever since his appointment on December 13, 2014.