Same as Type 6.5.4 except a visible security line overprinted in silver, aligned with the security thread. 20 added to left of Mahatma Gandhi and five horizontal bands in the centre in watermark. Front to back see through register above Ashoka Pillar reads 20 when viewed against light. Henceforth year of issue on reverse.
Note
Year of issue on reverse
See through register
Obverse 
Reverse
When viewed against light
See through register
Obverse Reverse When viewed against lightTable
| Type No. | Signature | Inset | Prefix | Year |
|---|---|---|---|---|
| 6.5.5.1 A | Y. V. Reddy | A | 2006 | |
| 6.5.5.1 B | Y. V. Reddy | A - C | 2007 | |
| 6.5.5.1 C | Y. V. Reddy | E | A - F | 2007 |
| 6.5.5.1 D | Y. V. Reddy | R | A - D | 2007 |
| 6.5.5.1 E | Y. V. Reddy | C | 2008 | |
| 6.5.5.1 F | Y. V. Reddy | E | F - K | 2008 |
| 6.5.5.2 A | D. Subbarao | A, B | 2009 | |
| 6.5.5.2 B | D. Subbarao | E | L - Q | 2009 |
| 6.5.5.2 C | D. Subbarao | R | A | 2009 |
| 6.5.5.2 D | D. Subbarao | B - H | 2010 | |
| 6.5.5.2 E | D. Subbarao | E | R - T | 2010 |
| 6.5.5.2 F | D. Subbarao | R | A - C | 2010 |
| 6.5.5.2 G | D. Subbarao | H - K... | 2011 | |
| 6.5.5.2 H | D. Subbarao | E | U - W | 2011 |
| 6.5.5.2 I | D. Subbarao | F | A - ... | 2011 |
| 6.5.5.2 J | D. Subbarao | R | D - ... | 2011 |
