Free Tamil Jathagam
Enter your date, time and place of birth to get your full Jathagam, free and instantly.
- Rasi chart & Navamsam
- Nakshatram, Lagnam, planet positions
- Dasa Bhukti periods
An exact birth time gives an accurate Jathagam. The Lagnam changes about every two hours.
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What's in your Jathagam?
A Jathagam is a chart of where the nine planets (Navagraham) were in the twelve Rasis at the exact time and place of your birth. In Tamil astrology it is the basis for reading character, education, career, marriage, health and the timing of life events.
The main chart, showing the nine planets across the 12 boxes. In Tamil Nadu it is drawn in the South Indian (square) style.
A supporting chart made by dividing each Rasi into nine parts. It is important for married life and for judging the real strength of each planet.
Your Janma Rasi is the Rasi the Moon was in when you were born. Daily and transit (peyarchi) predictions are based on it.
The star the Moon was in when you were born. There are 27 stars. It is the basis for marriage matching, choosing names and calculating Dasa periods.
The Rasi rising on the eastern horizon at the moment you were born. It is the first house of the chart. It changes about every two hours, which is why the exact birth time matters.
Shows which planet rules each period of your life. The Vimshottari Dasa system covers 120 years: Ketu 7, Sukran (Venus) 20, Suriyan (Sun) 6, Chandran (Moon) 10, Sevvai (Mars) 7, Rahu 18, Guru (Jupiter) 16, Sani (Saturn) 19, Budhan (Mercury) 17. Your birth star decides which Dasa you start with.
The 12 Rasis: Tamil and English names
In Tamil astrology your Rasi is your Moon sign. The "star sign" in Western astrology is your Sun sign by birth date, which is usually different. Use the form above to find your correct Rasi.
| # | Rasi | Tamil | English zodiac | Lord | Stars |
|---|---|---|---|---|---|
| 1 | Mesham | (மேஷம்) | Aries | Mars | Ashwini, Bharani, Krithigai pada 1 |
| 2 | Rishabam | (ரிஷபம்) | Taurus | Venus | Krithigai 2-4, Rohini, Mirugasirisham 1-2 |
| 3 | Mithunam | (மிதுனம்) | Gemini | Mercury | Mirugasirisham 3-4, Thiruvathirai, Punarpoosam 1-3 |
| 4 | Kadagam | (கடகம்) | Cancer | Moon | Punarpoosam 4, Poosam, Ayilyam |
| 5 | Simmam | (சிம்மம்) | Leo | Sun | Magam, Pooram, Uthiram 1 |
| 6 | Kanni | (கன்னி) | Virgo | Mercury | Uthiram 2-4, Hastham, Chithirai 1-2 |
| 7 | Thulam | (துலாம்) | Libra | Venus | Chithirai 3-4, Swathi, Visakam 1-3 |
| 8 | Viruchigam | (விருச்சிகம்) | Scorpio | Mars | Visakam 4, Anusham, Kettai |
| 9 | Dhanusu | (தனுசு) | Sagittarius | Jupiter | Moolam, Pooradam, Uthiradam 1 |
| 10 | Magaram | (மகரம்) | Capricorn | Saturn | Uthiradam 2-4, Thiruvonam, Avittam 1-2 |
| 11 | Kumbam | (கும்பம்) | Aquarius | Saturn | Avittam 3-4, Sathayam, Poorattathi 1-3 |
| 12 | Meenam | (மீனம்) | Pisces | Jupiter | Poorattathi 4, Uthirattathi, Revathi |
Each star is divided into 4 padams. Each Rasi holds 9 padams, which is two and a quarter stars.
Frequently asked questions
What details are needed to make a Jathagam?
Name, date of birth, time of birth and place of birth. An exact birth time makes the Lagnam and chart accurate.
Is the Jathagam on AstroTamil free?
Yes. Creating your Jathagam is completely free. Only questions to an astrologer about your Jathagam are paid, at one price per question.
Can I find my Rasi and Natchathiram from the date of birth alone?
Usually, but the Moon can change star during a day. Adding the birth time and place gives you the correct Rasi and Natchathiram.
What is the difference between Rasi and Lagnam?
Rasi is the sign the Moon was in at birth. Lagnam is the sign rising in the east at the moment of birth. Traditionally, Rasi relates to the mind, and Lagnam to the body and the overall path of life.
Why is my English zodiac sign different from my Tamil Rasi?
Western astrology uses the sign the Sun was in on your birth date. Tamil astrology uses the sign the Moon was in, and a different calculation system. So the two are usually different.
Can I see my Jathagam in English?
Yes. Use the English option on the form, or open the English version of this page.
Can I make a Jathagam for someone born abroad?
Yes. Choose the place of birth and the Jathagam is calculated using that place's time zone.
Reviewed by the AstroTamil astrologer panel with 40+ years of experience. Last updated: 22 October 2026.