law: Workmen's Compensation Act, 1923 
  29. Effect of failure to register agreement 
  Where a memorandum of any agreement the registration of which is
  
  required by section 28 is not sent to the Commissioner as required by that
  
  section the employer shall be liable to pay the full amount of compensation
  
  which he is liable to pay under the provisions of this Act and notwithstanding
  
  anything contained in the proviso to sub-section (1) of section 4 shall not
  
  unless the Commissioner otherwise directs be entitled to deduct more than half
  
  of any amount paid to the workman by way of compensation whether under the
  
  agreement or otherwise.