He was 90.
Singh, who was ill for sometime, died due to heart attack in Gwalior yesterday, UP Congress in-charge Ghulam Nabi Azad today said in a statement.
He served as a minister in Congress' UP government and held the position of Deputy Speaker in the state Assembly.
"Shivnath Singh, who had been ill for sometime died of a heart attack in Gwalior," District Magistrate Kaushal Raj said.
Singh will be laid to rest today in Gwalior.
Expressing grief over the demise of the former Congress leader, Azad said, "This is a personal loss to Congress and the party stands with the family in this hour of grief.