Consider the following statements about the Santhal Hool of 1855-56: 1. The Santhals were in a desperate situation as tribal lands were leased out 2. The Santhal rebels were treated very leniently by British officials 3. Santhal inhabited areas were eventually constituted into separate administrative units called Santhal parganas 4. The Santhal rebellion was the only major rebellion in mid 19th century India. Which of the statements given above is / are correct?