Amid reports that six-seven Shiv Sena (UBT) MPs and 14-16 MLAs are looking to join the rival Eknath Shinde-led Sena, Sena (UBT) chief Uddhav Thackeray told his MPs, "If someone wants to go, they're free to leave," India Today reported. "Those who leave Balasaheb's Shiv Sena will eventually regret it, but by then, it will be too late," he added.