law: Delhi Rent Control Act, 1958 
  13. Refund of rent, premium, etc., not
  
  recoverable under the Act. -
  Where any sum or other consideration has been
  
  paid , whether before or after the commencement of this Act, by or on behalf of
  
  a tenant to a landlord , in contravention of any of the provisions of this Act
  
  or of the Delhi and Ajmer Rent Control Act, 1952 (38
  
  of 1952), the Controller may, on an application made to him within a period of
  
  one year from the date of such payment, order the landlord to refund such sum
  
  or the value of such consideration to the tenant or order adjustment of such
  
  sum or the value of such consideration against the rent payable by the tenant.