law: 15. Unauthorised occupation of land.-
  (1) Any person who occupies or continues to occupy any land belonging to Government without lawful authority shall be regarded as a trespasser and may be summarily evicted therefrom by the competent authority and any building or other construction erected or anything deposited on such land, if not removed within such reasonable time as such authority may from time to time fix for the purpose, shall be liable to be forfeited to the Government and to be disposed of in such manner as the competent authority may direct:
  Provided that the competent authority may, in lieu of ordering the forfeiture of any such building or other construction, order the demolition of the whole or any part thereof.
  (2) Such trespasser shall also be liable by way of penalty to pay a sum which may extend to six times the annual assessment on such land as may be specified by the competent authority and such sum shall be recoverable in the same manner as an arrear of land revenue.
  (3) Upon payment of the penalty referred to in sub-section (2), the trespasser shall have the right of tending, gathering and removing any ungathered crops.