law: National Security Act, 1980
  8. Grounds of order of detention to be
  
  disclosed to persons affected by the order
  (1) When a person is detained in pursuance of
  
  a detention order, the authority making the order shall, as soon as may be, but
  
  ordinarily not later than five days and in exceptional circumstances and for
  
  reasons to be recorded in writing, not later than ten days from the date of detention,
  
  communicate to him the grounds on which the order has been made and shall
  
  afford him the earliest opportunity of making a representation against the
  
  order to the appropriate Government.
  (2) Nothing in sub-section (1) shall require
  
  the authority to disclose facts which it considers to be against the public
  
  interest to disclose.