The Great Trigonometrical Survey
| Set / Name of Stamp | Date of Issue | Denomination | Image |
|---|---|---|---|
| Radhanath Sikdar (1813-1870)June 28, 2004 | June 28, 2004 | Rs. 5 |   |
| The Great TriangulationJune 28, 2004 | June 28, 2004 | Rs. 5 |   |
| Nain Singh (1830-1882)June 28, 2004 | June 28, 2004 | Rs. 5 |   |