New Delhi, June 18 (SocialNews.XYZ) As six out of the party's nine Lok Sabha MPs are on the verge of defecting to Deputy Chief Minister Ekanth Shinde-led Shiv Sena, the Shiv Sena-UBT leadership has moved into high alert. The Shiv Sena-UBT has initiated a strict legal strategy to corner the rebel MPs and seek their disqualification. The political tremor became evident during a crucial Parliamentary Party meeting convened by the Uddhav Thackeray-led faction in Delhi on Thursday. Despite a strict party whip, only three Lok Sabha MPs attended, virtually confirming a vertical split in the Parliamentary wing.