Kadvalkar visited the spot along with sub-divisional officer Vaijnath Bhalerao and other local officials. On seeing him and others, members of the sand mafia tried to escape from the spot.
When the tehsildar asked them to stop, a driver of one the tractors tried to crush him down under his vehicle.
However, Kadvalkar saved himself by jumping into a nearby pit, police said.
The driver of the tractor as well as its owner have been booked on the charge of attempt to murder, police said, adding that two tractors have also been impounded from the spot.