15. Matters to be considered and neglected.- In determining the amount of compensation, the collector shall be guided by the provisions contained in section 23 and 24. [ 15A Power to call for records, etc.- The appropriate Government may at any time before the award is made by the Collector under section 11 call for any record of any proceedings (whether by way of inquiry or otherwise) for the purpose of satisfying itself as to the legality or propriety of any findings or order passed or as to the regularity of such proceedings and may pass such order or issue such direction in relation thereto as it may think fit: Provided that the appropriate Government shall not pass or issue any order or direction prejudicial to any person without affording such person a reasonable opportunity of being heard.] Taking Possession