Explanation
Here is the list of individuals who held the office of Chief Minister, Speaker of Lok Sabha, and President of India in chronological order:
1. NEELAM SANJIVA REDDY - Chief Minister of Andhra Pradesh (1962-1964), Speaker of Lok Sabha (1967-1969), President of India (1977-1982)
2. R. VENKATARAMAN - Chief Minister of Madras State (1947-1949), Speaker of Lok Sabha (1977-1980), President of India (1987-1992)
3. K. R. NARAYANAN - Chief Minister of Kerala (1970-1973), Vice President of India (1992-1997), President of India (1997-2002)
Note: The list includes only those individuals who have held all three offices, and not Lieutenant Governors or Administrators of Union Territories.