Optical Instruments
| Set / Name of Stamp | Date of Issue | Denomination | Image |
|---|---|---|---|
| Gandhi and NehruAugust 15, 1973 | August 15, 1973 | 20 nP |   |
| Dr. B R Ambedkar 1891-1956April 14, 1973 | April 14, 1973 | 20 nP |   |
| Tanguturi Prakasam 1872-1957October 16, 1972 | October 16, 1972 | 20 nP |   |
| India National Philatelic Exhibition – 1970December 23, 1970 | December 23, 1970 | INR 1.00 |   |
| Children Examine StampsDecember 23, 1970 | December 23, 1970 | 20 nP |   |
| Vinayak Damodar SavarkarMay 28, 1970 | May 28, 1970 | 20 nP |   |
| Thakkar BapaNovember 29, 1969 | November 29, 1969 | 20 nP |   |
| Mahatma Gandhi Centenary 1869-1969October 2, 1969 | October 2, 1969 | INR 5.00 |   |
| Mahatma Gandhi Centenary 1869-1969October 2, 1969 | October 2, 1969 | 75 nP |   |
| Mahatma Gandhi Centenary 1869-1969October 2, 1969 | October 2, 1969 | 20 nP |   |