Days in PM’s office.
- Jawaharlal Nehru – 6,130
- Indira Gandhi – 5,829
- Manmohan Singh – 3,656
- Narendra Modi – 3,536
- Atal Bihari Vajpayee – 2,272
- Rajiv Gandhi – 1,858
- PV Narasimha Rao – 1,791
- Morarji Desai – 856
- Lal Bahadur Shastri – 581
- Vishwanath Pratap Singh – 343
- Inder Kumar Gujral – 332
- HD Deve Gowda – 324
- Chandra Sekhar – 223
- Charan Singh – 170
- Gulzari Lal Nanda – 26