law: The Prevention of Terrorism Act, 2002
  20. Offence relating
  
  to membership of a terrorist organization.-
  1.  A
  
  person commits an offence if he belongs or professes to belong to a terrorist
  
  organisation: Provided that this sub-section shall not apply where the person
  
  charged is able to prove-
  a.   that the organisation
  
  was not declared as a terrorist organisation at the time when he became a
  
  member or began to profess to be a member; and
  b.   that he has not taken
  
  part in the activities of the organisation at any time during its inclusion in
  
  the Schedule as a terrorist organisation.
  1.  
  2.  A
  
  person guilty of an offence under this section shall be liable, on conviction,
  
  to imprisonment for a term not exceeding ten years or with fine or with both.