In a shrewd political move aimed at queering the pitch for its arch rival Shiv Sena, MNS on Sunday declared its support for Narendra Modi in his prime ministerial bid while fielding its candidates for Lok Sabha polls mainly from those constituencies which are contested by Sena, virtually sparing BJP.br br Addressing his party workers on the eighth foundation day of Maharashtra Navnirman Sena (MNS) here, party chief Raj Thackeray said Modi should become the Prime Minister.