Opposition leaders slammed the minister for touring the rain-affected areas in a decorated bullock cart.
A boulder from a hillock crashed on the house of Anil Singh at Waghralpada in Rajavali area of Vasai around 6.30 am and he died.
Heavy rainfall and flooding over the last 10 days has wreaked havoc in Maharashtra, leaving 84 people dead and 66 others injured.
Of the total number of deceased, nine persons died on Saturday - four in Wardha district, three in Gadchiroli and one each in Nanded and the coastal Sindhudurg district, it said.
Maharashtra rains: Two washed away in flood waters in Bhiwandi; Hingoli villagers shifted to safer locations
The first incident took place on Thursday night, when 35-year-old Pintya Pandarinath Jadhav, a resident of Padgha in the taluka, had gone for fishing near a flooded steam.
The district received an average 89.27 mm downpour in the 24-hour period ending at 10 am on Thursday, with Wada taluka receiving the maximum 135 mm rainfall.
Maharashtra: 12 hamlets cut off after bridge gets flooded due to heavy rains in Palghar; IMD 'red' alert for three districts in western parts
According to authorities, Pandartara bridge, which connects Usgaon in Vasai taluka, was inundated and submerged because of incessant rainfall in the region.