 Singhal soon became the chief architect of the Ramjanmabhoomi movement.During the tenure of Prime Minister Atal Bihari Vajpayee (1998-2004) and Ashok Singhal, the pair fell out when Ashok Singhal felt that NDA Government of Vajpayee was not taking any further steps in building Ram Mandir.Ashok Singhal then went on fast unto death on the demand of the construction of Ram Mandir at Ayodhya.