The mishap took place yesterday on National Highway 78 near the Birsinghpur Pali area in the district when the car Singh was travelling in crashed into a stationary truck.
Singh, the Madhya Pradesh BJP Disciplinary Committee President, and two other occupants of the car -- Narendra, nephew of former minister Jai Singh Maravi, and party leader Martand Singh sustained serious injuries in the accident.
The trio was taken to a district hospital where Singh, who had suffered injures to his head, succumbed during treatment, police said.
Chief Minister Shivraj Singh Chouhan, Leader of Opposition in Lok Sabha, Sushma Swaraj, and BJP Vice-President Prabhat Jha have expressed grief over Singh's demise.