Consider the following statements with reference to the Revenue Administration of Marathas under Chhatrapati Shivaji Maharaj:

1. Chhatrapati Shivaji Maharaj changed in the position of hereditary revenue officials and strictly supervised the Mirasdars who had hereditary rights of the land.

2. The revenue system was patterned on the Kathi system of Malik Amber in which every piece of land was measured by Rod or Kathi.

3. Chauth and Sardeshmukhi were the taxes that were collected inside the Maratha territory.

Which of the statements given above is/are correct?