The correct option is A K.V.K. Sundaram
K.V.K. Sundaram was never the speaker of Lok Sabha. Kalyan Vaidyanathan Kuttur Sunderam, also referred as K.V.K. Sundaram, was an Indian civil servant, who holds the record as the first Law Secretary of independent India and second Chief Election Commissioner of India. G.S. Dhillon was unanimously elected as the Speaker of Ihe Lok Sabha on 8 August 1969. Balirarn Bhagat served as the Speaker of Lok Sabha from 1976 to 1977. Hukam Singh was unanimously elected as the Speaker of the Third Lok Sabha from 2 April 1962 to 3 March 1967.