law: Government Securities Act 2006
  23.
  
  Period of limitation of Government's liability in respect of interest. -
  1.   Where no shorter
  
  period of limitation is fixed by any law for the time being in force, the
  
  liability of the Government in respect of any interest payment due on a
  
  Government security shall terminate on the expiry of six years from the date on
  
  which the amount due by way of interest became payable: Provided that the
  
  Government may allow a bona fide claim for payment of interest after the expiry
  
  of the period of six years in those cases where the holders of securities could
  
  not prefer their claims within the said period of six years.
  2.   Notwithstanding
  
  anything contained in sub-section (1), the Bank may specify the securities in
  
  respect of which, the circumstances under which, and the terms and conditions
  
  subject to which, interest may be paid even after the expiry of the period
  
  specified in the said sub-section.