Department of Delhi Archives 
The registration records of following Sub-Registrar Offices of Government of NCT of Delhi are available with the department :
| S. No. | Sub-Registrar Office | Period |
| 1 | Sub-Registrar - I | 1870 to 1993 |
| 2 | Sub-Registrar - II | 1955 to 1993 |
| 3 | Sub-Registrar - III | 1939 to 2000 |
| 4 | Sub-Registrar - IV | 1968 to 1993 |
| 5 | Sub-Registrar - V | 1989 to 1993 |