 He was member of 12th and 14th Lok Sabha from Gonda, Uttar Pradesh as Samajwadi Party candidate.In March 2014 he resigned and joined BJP and contested the 2014 Lok Sabh seat from Gonda.Kirti Vardhan Singh is known to be an environmental activist, in July 2018, he has won a case against State government of Uttar Pradesh in Green Tribunal, a case pertaining to illegal sand mining by mafias in his constituency.