Sawant also linked the lack of patriotism in the country to the protests against recent legislations passed in Parliament.
He was addressing a party convention after the announcement of Sadanand Tanavade's name as Goa BJP chief.
Sadanand Shet Tanavade is a former MLA and was serving as the general secretary of the BJP state unit for three years.
The arrested conman, identified as Sunil Singh, was allotted housing, police security cover and even rubbed shoulders with ministers and senior BJP officials during the period.
Sawant also said that the law, which was passed by Parliament earlier this month, would be passed in the state legislative assembly soon.
There was a time when Goans grew onion and other veggies, he said, speaking at a function at Porvorim near Panaji on Friday.
Congress leaders said they wanted to garland the CM and tell him to take "all the credit" on the Mahadayi issue, but save the river water from being diverted.
The Opposition has, however, strongly criticised Sawant for not being firm enough in his resolve to tackle the crisis as well as punish those responsible for putting Goa at ecological risk.
The joint operation failed on account of stormy weather and a minor accident, resulting in the vessel continuing to pose a threat to the coastal area, on account of its hazardous cargo.
As per the schedule released by the Chief Minister's Office (CMO), Sawant would first visit Kolhapur on Thursday during which he would meet officials of the BJP's young wing.
'With festivals like Diwali approaching, this decision of the government will help the auto industry,' said Transport Minister Mauvin Godinho.
Goa CM urged farmers, dairy owners to focus on the generation of vermicompost, which he said, would replace chemical fertilisers, to be used as manure for agricultural and horticultural crops.
Sawant said the Goa government is firm on its stand that the Mahadayi river water should not be allowed to be diverted by Karnataka.
Sawant said though Goa's major revenue source - the mining activity - has been stopped, his government is tapping other options to make up for the losses.
Days after 10 Congress MLAs in Goa joined the BJP, CM Sawant reshuffled his cabinet, dropping three members of ally GFP and an Independent legislator as ministers.