law: 19.Punishment for harbouring, etc.-
  Whoever voluntarily harbors or conceals, or attempts to harbour or conceal any person knowing that such person is a terrorist shall be punishable with imprisonment for a term which shall not be less than three years but which may extend to imprisonment for life, and shall also be liable to fine:
  Provided that this section shall not apply to any case in which the harbour or concealment is by the spouse of the offender.