The proviso to that sub section lays down that nothing contained in sub section 2 shall debar the competent officer from determining the mortgage debt in respect of, such property or any interest therein or from separating the interest of the evacuee from that of the claimant under section provides that notwithstanding anything to the contrary in any law or contract or any decree or order of the civil court or other authority, the competent officer may, subject to any rules that may be made in this behalf, take all such measures as he may consider necessary for the purpose of separating the interest of the evacuee from those of the claimant in any composite property and in particular may "(b) in the case of any claim of a mortgagor or a mortgagee, (i) pay to the Custodian or the claimant the amount payable under the mortgage debt and redeem the mortgaged property; or (ii) sell the mortgaged property for satisfaction of the mortgage debt and distribute the sale proceeds thereof; or (iii) partition the property between the mortgagor and the mortgagee having regard to the share to which the mortgagee would be entitled in lieu of his claim;" Cl.