Ardra (Thiruvathirai) Quick Reference Table
All four padas (1–4) of Ardra fall in Mithuna (Gemini), spanning 6°40' to 20°00' under the sign rulership of Mercury.
| Sanskrit & Tamil Name | Ardra / Thiruvathirai (Star #6 of 27) |
|---|---|
| Rasi (Moon Sign) | Mithuna (Gemini) |
| Rasi Planetary Ruler | Mercury (Budha) |
| Nakshatra Lord (Vimshottari) | Rahu |
| Rajju Group | Kantha Rajju |
| Vedhai (Vedha) Partner | Shravana (Thiruvonam) |
| Gana (Temperament) | Manusha Gana |
| Yoni (Animal Symbol) | Dog (Shwana) (shared with Mula) |
Rajju Porutham: Kantha Rajju Group
Ardra (Thiruvathirai) belongs to Kantha Rajju. In Pairutham’s ten-porutham check, Rajju Porutham is marked Pass when two partners belong to different Rajju groups, and Caution when both charts share Kantha Rajju. The other birth stars in Kantha Rajju are Rohini (Rohini), Hasta (Hastham), Swati (Swathi), Shravana (Thiruvonam), Shatabhisha (Sadayam). When a match involves two Kantha Rajju stars, families typically review the full chart and regional conventions with a family astrologer.
- #4 Rohini (Rohini) — shares Kantha Rajju (Rishaba (Taurus))
- #13 Hasta (Hastham) — shares Kantha Rajju (Kanni (Virgo))
- #15 Swati (Swathi) — shares Kantha Rajju (Thula (Libra))
- #22 Shravana (Thiruvonam) — shares Kantha Rajju (Makara (Capricorn))
- #24 Shatabhisha (Sadayam) — shares Kantha Rajju (Kumbha (Aquarius))
Vedha (Vedhai) Porutham Counterpart for Ardra
In Pairutham’s symmetric 13-pair Vedhai table, Ardra (Thiruvathirai) forms a Vedhai pair with Shravana (Thiruvonam). When Ardra is matched with Shravana, Vedha Porutham is marked Caution; with any of the other 25 distinct birth stars, Vedha Porutham is marked Pass.
Inspect counterpart profile: Shravana (Thiruvonam) Nakshatra Compatibility
Gana (Manusha) & Yoni (Dog (Shwana)) Compatibility
Ardra belongs to Manusha Gana. In the 6-point Gana koota and Tamil Gana Porutham, a Manusha Gana star scores 6 of 6 points (Pass) with another Manusha Gana star and 5 or 6 points (Pass) with Deva Gana stars. Pairings with Rakshasa Gana stars receive a Partial or Caution label depending on direction, where astrologers review Moon-sign friendship (Rasi Athipathi) and star distance.
Ardra is assigned the Dog (Shwana) Yoni archetype, which it shares with Mula (Moolam). Matching Ardra with Mula (or another Ardra chart) awards the maximum 4 of 4 Yoni points, while friendly and neutral Yoni archetypes award 3 or 2 classical points (Pass for Yoni Porutham).
Read the Gana Porutham guide · Read the Yoni Porutham & 14 animal symbols guide
Same-Nakshatra (Eka Nakshatra) Marriage for Ardra (Thiruvathirai)
Ardra (Thiruvathirai) is one of the eight birth stars widely cited in classical Tamil panchanga traditions—alongside Rohini, Ardra, Pushya, Magha, Vishakha, Shravana, Uttara Bhadrapada and Revati—as supportive for same-nakshatra (Eka Nakshatra) marriage, particularly when the two partners were born in different padas. Because two identical stars still share Kantha Rajju and Nadi in raw table lookups, Pairutham flags Rajju Caution transparently and displays both padas so your family astrologer can apply regional Eka Nakshatra rules.
Read Same Nakshatra Marriage (Eka Nakshatra): When Is It Allowed?
Best-Matching Nakshatras for Ardra (Thiruvathirai)
Using Pairutham’s matching rules, the strongest birth-star matches for Ardra (Thiruvathirai) are stars outside Kantha Rajju that do not form a Vedhai pair with Ardra and achieve supportive Dina (Tara), Gana and Mahendra star-count alignment—such as Uttara Phalguni (Uthiram), Uttara Ashadha (Uthiradam), Revati (Revathi), Bharani (Bharani), Purva Phalguni (Pooram), Purva Ashadha (Pooradam). Because full compatibility also depends on the exact Moon sign (for split-Rasi stars), Lagna, Mars house placements and Dasha periods, always run the full birth-detail calculator for both partners.
| Compatible Star | Rasi (Moon Sign) | Rajju & Gana | Supportive Porutham Alignment |
|---|---|---|---|
| Uttara Phalguni (Uthiram) | Simha (Pada 1) · Kanni (Padas 2–4) | Nabhi Rajju · Manusha | Different Rajju (Nabhi) · No Vedhai pair · Dina (Tara) Pass · Same Gana (Manusha, 6/6) · Mahendra star-count alignment |
| Uttara Ashadha (Uthiradam) | Dhanusu (Pada 1) · Makara (Padas 2–4) | Nabhi Rajju · Manusha | Different Rajju (Nabhi) · No Vedhai pair · Dina (Tara) Pass · Same Gana (Manusha, 6/6) · Mahendra star-count alignment |
| Revati (Revathi) | Meena (Pisces) | Pada Rajju · Deva | Different Rajju (Pada) · No Vedhai pair · Dina (Tara) Pass · Compatible Gana (Deva) · Mahendra star-count alignment |
| Bharani (Bharani) | Mesha (Aries) | Kati Rajju · Manusha | Different Rajju (Kati) · No Vedhai pair · Dina (Tara) Pass · Same Gana (Manusha, 6/6) |
| Purva Phalguni (Pooram) | Simha (Leo) | Kati Rajju · Manusha | Different Rajju (Kati) · No Vedhai pair · Dina (Tara) Pass · Same Gana (Manusha, 6/6) |
| Purva Ashadha (Pooradam) | Dhanusu (Sagittarius) | Kati Rajju · Manusha | Different Rajju (Kati) · No Vedhai pair · Dina (Tara) Pass · Same Gana (Manusha, 6/6) |
| Purva Bhadrapada (Poorattathi) | Kumbha (Padas 1–3) · Meena (Pada 4) | Nabhi Rajju · Manusha | Different Rajju (Nabhi) · No Vedhai pair · Dina (Tara) Pass · Same Gana (Manusha, 6/6) |
| Uttara Bhadrapada (Uthirattathi) | Meena (Pisces) | Kati Rajju · Manusha | Different Rajju (Kati) · No Vedhai pair · Dina (Tara) Pass · Same Gana (Manusha, 6/6) |
Learn how Dina Porutham counts across the 27 stars · Learn how Mahendra Porutham star counts work
Questions families ask
Which Rajju group does Ardra (Thiruvathirai) belong to?
Ardra (Thiruvathirai) belongs to the Kantha Rajju group. For Rajju Porutham to Pass in Pairutham’s table check, the partner’s birth star should belong to one of the other four Rajju groups rather than Kantha Rajju (Rohini (Rohini), Hasta (Hastham), Swati (Swathi), Shravana (Thiruvonam), Shatabhisha (Sadayam)).
Which star is the Vedhai (Vedha) partner for Ardra (Thiruvathirai)?
Shravana (Thiruvonam) is the symmetric Vedhai counterpart for Ardra (Thiruvathirai). Matching these two stars produces a Vedha Porutham Caution, whereas all other stars Pass Vedha with Ardra.
What Rasi (Moon sign), Gana and Yoni belong to Ardra?
Ardra (Thiruvathirai) falls in Mithuna (Gemini) (Mercury (Budha)), is ruled by the Vimshottari star lord Rahu, belongs to Manusha Gana and has the Dog (Shwana) Yoni animal symbol.
Which nakshatras match best with Ardra (Thiruvathirai) for marriage?
Stars that are outside Kantha Rajju, avoid the Vedhai pairing, and align in Dina, Gana and Mahendra counts—including Uttara Phalguni (Uthiram), Uttara Ashadha (Uthiradam), Revati (Revathi), Bharani (Bharani), Purva Phalguni (Pooram), Purva Ashadha (Pooradam)—offer strong star-level compatibility with Ardra. Enter both birth dates, times and places in Pairutham’s calculator to check all 10 poruthams and 36 Ashtakoota points.
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A star table checks Rajju, Vedhai, Gana and Dina, while a full horoscope comparison checks Moon degrees, padas, Rasi and Rasiyathipathi, Mars houses from Lagna, Moon and Venus, and upcoming Dasha periods.
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