From September 2019 till November 30 evening, Matondkar, 46, had categorically denied that she was planning to join the Shiv Sena, though strong speculation reigned in political and media circles.
"Very late last night things were finalised and she will join the Shiv Sena formally in the presence of party president and CM Thackerayji on Tuesday," the CM's aide Harshal Pradhan said.
Shiv Sena MP and Chief Spokesperson Sanjay Raut also said on Monday that "she is already a Shiv Sainik, just wait for the formal announcement" to a barrage of questions by the media.
Urmila created quite a sensation as the sultry siren in the movie Rangeela over two decades ago, which set the cash registers ringing no end at the box office. She was also paired opposite Shah Rukh Khan in Chamatkar.