Section 251. Where, previously to the commencement of this Act, any conveyance, mortgage-deed or other instrument

251. Where, previously to the commencement of this Act, any conveyance, mortgage-deed or other instrument has been made in pursuance of the Indian Companies Act, 1866, such instrument shall be of the same force as if this Act had not passed; and, for the purposes of such instrument, the Indian Companies Act, 1866, shall be deemed to remain in full force.