Leaders of PWF constituents -- MDMK, CPI(M), CPI and VCK -- all took part in the protest meet held at Valluvar Kottam here.
CPI(M) State Secretary G Ramakrishnan demanded to know what action had been initiated against hoarders even as thousands of tonnes of pulses had been recovered from them.
"This was an artificial shortage created due to hoarding," VCK founder Thol Tirumavalavan said.
The protesting members also slammed the economic policies adopted by the Centre and state governments alike.