Union Parliamentary Affairs Minister Ananth Kumar died at a private hospital in Bengaluru in the early hours of Monday after battling lung cancer for several months, hospital authorities said.
Ananth, 59, breathed his last around 2 am with his wife Tejaswini and two daughters by his bedside, Sankara Hospital Director Nagaraj told.
He had come back to Bengaluru only recently after undergoing treatment in the U.S and Britain.
He was later under treatment at the Sankara Hospital in Bengaluru.
BJP sources said the body of Ananth would be kept at the National College Ground, which falls in his Bangalore South Lok Sabha constituency, for public homage.
Details of funeral arrangements were being worked out, the sources said.
Ananth Kumar passed away from complications following cancer and infections, his party office said in a statement. He had been on the ventilator in the Intensive Care Unit for the last few days, it said.