Can trustees sell the immovable property of the trust without court's permission?

Dear Learned Counsels,

A registered religious Trust owns immovable properties. The Trust Deed (registered) has empowered the Trustees to Sell, Mortgage or othewise deal with the properties belonging to Trust. In these circumstances is it still necessary to obtain Court Permission for alienating the property ?

And out of 16 Trustess only 4 people have executed the Sale Deed.

thanking your