Minister of state for Revenue Sanjay Rathod today said the government had prepared the proposal.
The government would not be enacting a new law to curb the illegal sand mining, instead it was going to amend the existing laws to make them more stringent, he said.
"The definition of 'threat' is being changed. Charges of dacoity will be pressed against those who are caught stealing machines used for sand excavation and such machines will be seized," Rathod told reporters here.
Revenue minister Eknath Khadse had recently said that sand dredging is banned in many areas including the neighbouring (coastal) Raigad district, but illegal dredging was rampant.