Collector may revoke orders passed under
section 40, the Collector shall cause such notice to be served, notwithstanding that the revenue-free estate may have been annexed to another estate as hereinbefore provided; and the Collector shall further cause a notice containing the same particulars to be served in respect of such revenue-free estate on the holder of the other estate to which it is under the provisions of section 85 annexed. Section 90 Collector may revoke orders passed under