Mumbai: Setting the ball rolling for a legal battle, the Shiv Sena (UBT) has shot off missives to each of the six MPs who have announced allegiance to the Shiv Sena led by Deputy Chief Minister Eknath Shinde pointing that ‘no merger’ has been permitted as claimed. Shiv Sena (UBT) Parliamentary Party (Lok Sabha) Leader and Mumbai South MP Arvind Sawant, has written the letters to six MPs - copies of which were also sent to Speaker Om Birla – which were released today, days a