Anniversaries and Jubilees
| Set / Name of Stamp | Date of Issue | Denomination | Image |
|---|---|---|---|
| Jain Muni MishrimaljiAugust 24, 1991 | August 24, 1991 | Rs. 1 |   |
| Gopinath BardoloiAugust 5, 1991 | August 5, 1991 | Rs. 1 |   |
| SriprakashAugust 3, 1991 | August 3, 1991 | Rs. 2 |   |
| New Delhi-Diamond Jubilee : New Delhi MonumentsJune 25, 1991 | June 25, 1991 | Rs. 6.50 |   |
| New Delhi-Diamond Jubilee : Rastrapati Bhavan BuildingJune 25, 1991 | June 25, 1991 | Rs. 5 |   |
| Antarctic Treaty: Antarctic Map and pair of Adelie Penguins (Pygoscelis adeliae)June 23, 1991 | June 23, 1991 | Rs. 6.50 |   |
| Antarctic Treaty: Emperor Penguin (Aptenodytes forsteri)June 23, 1991 | June 23, 1991 | Rs. 6.50 |   |
| Jagannath SunkersettFebruary 15, 1991 | February 15, 1991 | Rs. 2 |   |
| Banaras Hindu UniversityJanuary 20, 1991 | January 20, 1991 | Rs. 1 |   |
| Dnyaneshwari (Spiritual Epic)December 31, 1990 | December 31, 1990 | Rs. 2 |   |