Who among the following was never the Lok Sabha Speaker?

1. The question asks to identify who among the given individuals was never the Lok Sabha Speaker. 2. G. S. Dhillon (Gurdial Singh Dhillon) served as the Speaker of the Lok Sabha twice (1969-1971 and 1971-1975). 3. Baliram Bhagat served as the Speaker of the Lok Sabha from 1976 to 1977. 4. Sardar Hukum Singh served as the Speaker of the Lok Sabha from 1962 to 1967. 5. K. V. K. Sundaram (Kalyan Vaidyanathan Kuttu Sundaram) was a distinguished civil servant who served as the second Chief Election Commissioner of India (1958-1967) and also as the Law Secretary. He was never the Speaker of the Lok Sabha. Therefore, K. V. K. Sundaram was never the Lok Sabha Speaker.