"Those who don't like my leadership, they are free to join other parties. The doors are open. I will not ask them to stay," Uddhav said, talking to reporters after a meeting of Sena leaders which was attended by Joshi and Mohan Rawale, another leader who took potshots at Uddhav recently.
Uddhav, who was anointed president of the party after the death of his father, Bal Thackeray, also expressed confidence that he would "fly the (Sena's) saffron flag atop the state Legislature on the strength of loyal cadres".
Joshi, former Speaker of Lok Sabha and former Maharashtra Chief Minister, had publicly criticised Uddhav last month. He was later booed out by party workers from the dais during the party's annual Dusshera rally.
Rawale, who was elected five times to the Lok Sabha from Mumbai south-central constituency and considered a Bal Thackeray loyalist, created a flutter in political circles a few days go when he met MNS chief Raj Thackeray at latter's residence earlier this month.