The body of Rajender, who died of heart attack, was kept at the mortuary on Wednesday night, the officials said on Friday.
The man died as his tractor overturned at ITO where many farmers participating in the parade had reached from the Ghazipur border after taking a detour of the pre-agreed route for the march.
AAP national spokersperson Raghav Chadha said that it was 31 days since scores of farmers have been sitting at the borders of the national capital.
Around 20 farmers, many of them are from Punjab, have so far died either of natural causes or in road accidents, the BKU leader said.
Villagers said the movement of the wild boar had increased in the area and farmers were finding it difficult to protect their crops.