| ID | 001369 |
| Call Number | 181.45/Sir |
| Title Proper | Letters on yoga |
| Language | ENG |
| Author | Sir Aurobindo |
| Publication | Pondicherry, Sir Aurobind Ashram, 1995. |
| Cardex. Copy Specific Data | 008238 - I, part I, 501 p. Rs. 120 |
| Cardex. Copy Specific Data | 008239 - II part II & III, 505 to 1083 p, RS. 135 |
| Cardex. Copy Specific Data | 008240 - III , part IV, 1808 p, Rs. 165 |
| Classification Number | 181.45 |