Geometric Shapes
| Set / Name of Stamp | Date of Issue | Denomination | Image |
|---|---|---|---|
| Indian Mathematical SocietyDecember 27, 2009 | December 27, 2009 | Rs. 5 |   |
| International Year of CrystallographyJanuary 30, 2014 | January 30, 2014 | Rs. 20 | |
| The Great TriangulationJune 28, 2004 | June 28, 2004 | Rs. 5 |   |