Union Minister Ram Vilas passed away late on Thursday.
Mr. Paswan (74) had recently underwent heart surgery in a Delhi hospital.
Mr. Paswan who has been in active politics for more than five decades and is one of the country’s most noted Dalit leaders, has been hospitalised for the last few weeks.
Miss you papa, Lok Janshakti Party (LJP) chief Chirag Paswan tweeted while informing about his the leader’s demise.
Mr. Chirag had last week tweeted: “For the last many days dad is getting treated in a hospital. Due to some sudden developments on Saturday evening, an operation of his heart had to be conducted in the late night. If the need arises, then possibly after a few weeks another operation might be conducted. Thanks to all for standing by me and my family in this hour of struggle.”