The Maharashtra Navnirman Sena is a Regionalist Indian organisation based in the state of Maharashtra and operates on the ideology of Hindutva and Marathi Manus. It was founded on 9 March 2006 in Mumbai by Raj Thackeray after he left the Shiv Sena party due to differences with his cousin Uddhav Thackeray, who later became the 19th Chief Minister Of Maharashtra and to his sidelining by the Shiv Sena in major decisions like distribution of election tickets.