| Meaning: | River, Darkness |
| Origin: | Hebrew, Norwegian, Spanish, Hungarian, Scottish, Indian, Lithuanian |
| Religion: | Hindu |
| Gender: | Masculine (Boy name) |
| Language: | Bengali, Gujrati, Telugu, Malayalam, Punjabi, Kannada, Tamil |
| Rashi: | Sinh (Leo), Tula (Libra) |
| Nakshatra: | Makha |
| In Local: | ತಮಸ; તમસ; തമസ; తమస; ਤਮਸ; তমস; தமஸ |
| Supportive Numbers: | 1, 2, 3, 6, 9, 15, 24 |
| Auspicious Color: | Yellow, Blue, White |
| Auspicious Metal: | Silver, Copper |
| Auspicious Stones: | Diamond |
| Alternate Stones: | Lapis Lazuli, Opal, Peridot |
| Lucky Days: | Wednesday, Friday, Saturday |
| Ruling Hours: | 7pm ~ 9pm |
| Ruling Planet: | Venus |
| Vibration: | Unsteady |
| Passion: | Live an easy, uncomplicated life |
| Life Pursuit: | To be consistent |
| Suffixed Name: | Tamasji, Tamasanna, Tamasrao, Tamasappa, Tamasmal, Tamaslal, Tamasdas, Tamasbabu |