Sea (Marine) Mammals
| Set / Name of Stamp | Date of Issue | Denomination | Image |
|---|---|---|---|
| Marine Mammals: Sea Cow (Dugong dugon)March 4, 1991 | March 4, 1991 | Rs. 6.50 |   |
| Marine Mammal: River Dolphin (Platanista gangetica)March 4, 1991 | March 4, 1991 | Rs. 4 |   |