Optical Instruments
| Set / Name of Stamp | Date of Issue | Denomination | Image |
|---|---|---|---|
| A.D. Shroff (1899-1965)October 9, 1999 | October 9, 1999 | Rs. 3 |   |
| 20th Death Anniversary of Dr. T. M. A. Pai (1898-1979)October 9, 1999 | October 9, 1999 | Rs. 3 |   |
| Linguistic Harmony Of India – Rambriksh Benipuri (1899-1968)September 14, 1999 | September 14, 1999 | Rs. 3 |   |
| Kalki Krishnamurty (1899-1954)September 9, 1999 | September 9, 1999 | Rs. 3 |   |
| Swami Ramanand Teerth (1903-1972)August 15, 1999 | August 15, 1999 | Rs. 3 |   |
| Balai Chand Mukhopadhay (1899-1979)July 19, 1999 | July 19, 1999 | Rs. 3 |   |
| Gulzarilal Nanda (1898-1998)July 4, 1999 | July 4, 1999 | Rs. 3 |   |
| Biju Patnaik (1916-1997)March 5, 1999 | March 5, 1999 | Rs. 3 |   |
| Dr. Tristao Braganza Cunha (1891-1958)September 26, 1998 | September 26, 1998 | Rs. 3 |   |
| Muhammed Abdurahiman Shahib (1898-1945)May 15, 1998 | May 15, 1998 | Rs. 2 |   |