law: Right to Fair Compensation and Transparency in Land Acquisition, Rehabilitation and Resettlement Act, 2013 
  73.
  
   Collector may be directed to pay interest on excess
  
  compensation.
  If the sum, which in
  
  the opinion of the Authority concerned, the Collector ought to have awarded as
  
  compensation is in excess of the sum which the Collector did award as
  
  compensation, the award of the Authority concerned may direct that the
  
  Collector shall pay interest on such excess at the rate of nine per cent. per
  
  annum from the date on which he took possession of the land to the date of
  
  payment of such excess into Authority:
  Provided that the
  
  award of the Authority concerned may also direct that where such excess or any
  
  part thereof is paid to the Authority after the date or expiry of a period of
  
  one year from the date on which possession is taken, interest at the rate of
  
  fifteen per cent. Per annum shall be payable from the date of expiry of the
  
  said period of one year on the amount of such excess or part thereof which has
  
  not been paid into Authority before the date of such expiry.