| Member of the Lok Sabha | | - | |
| Prime Minister | - | - | |
| Leader of the House in Lok Sabha | | - | |
| Head, Dept. of Atomic Energy | - | - | |
| Head, Dept. of Space | - | - | |
| Prime Minister of India | | - | |
| Prime Minister | | - | |
| Member of the Lok Sabha | | - | |
| Minister of Personnel, Public Grievances, & Pensions | - | - | |
| Member of the Lok Sabha | | - | |
| Prime Minister of the Republic of India | | - | |
| Member of the 16th Lok Sabha | | | |
| Member of the 17th Lok Sabha | | | |
