MSP Thenraja, president, Thoothukudi Salt Merchants Association, said the market price of a tonne of manufactured salt touched a historic high of Rs 3,200 against the previous year’s market price of Rs 2,800. The demand for this edible commodity remains steady in southern states, including Tamil Nadu, Kerala, Andhra Pradesh, Telangana and Karnataka. To cater to the consumption demands, about three to five lakh tonnes of Thoothukudi salt would be dispatched to these states, Thenraja said.