Patil died in Mumbai from cancer at the age of 57. Patil, who was Maharashtra's Home Minister during the 26/11 terror attacks, breathed his last at Lilavati Hospital where he was on life support, hospital sources said.
The NCP leader, a six-term MLA from Tasgaon in Sangli district, is survived by his mother, wife, and two daughters.
NCP state spokesperson Nawab Malik said Patil's body will be kept in state at the party headquarters Monday evening and later taken to his native village Anjani in Tasgaon area of Sangli district in south-west Maharashtra.
The last rites will be performed on Tuesday afternoon in Tasgaon where Patil was born, grew, harboured his political roots and was elected six times to the Maharashtra legislature.
According to official sources, Patil will be accorded a state funeral and the state government has declared a day of state mourning.