Find the deity your chart is traditionally associated with via the Jaimini Karakamsa method: your Atmakaraka’s navamsa (D9) sign, and the planet(s) connected with the 12th sign from it - with the primary deity and the Dashavatara form shown side by side, the resolution rule named, and honest provisional flags when birth-time error could change the answer.
100% private - the calculation runs entirely in your browser. No birth data sent anywhere.
Supports 1900 onwards for better calculation reliability.
Birth time matters here: the result reads navamsa (D9) signs, which change every 3 deg 20 min of a graha's motion - the fast-moving Moon crosses a navamsa about every six hours. Any graha near a navamsa edge is flagged provisional below.
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astrology| Input | Date, time, and place of birth (time required) |
| Method | Karakamsa = Atmakaraka’s navamsa sign; Ishta Devata from the 12th sign from it |
| Chart used | Navamsa (D9) only - never the D1; the D20 variant is documented, not computed |
| Karaka scheme | 8 karakas default (Rahu reversed, Ketu excluded); 7-karaka toggle provided |
| Empty 12th | Cascade: occupant, else aspecting planet (graha drishti on D9), else sign-lord - the rule that fired is labeled |
| Node rules | AK = Rahu counts the 12th in reverse; a node in the 12th counts as an occupant |
| Deity columns | Primary deity (PVR tables, variants disclosed) + Dashavatara (BPHS ch. 87) |
| Multiple indicators | Primary by dignity (exalted or own sign in D9), then rashi degree; all shown; NOT Shadbala |
| Provisional flags | AK identity (near-tie / D1 sign edge), Karakamsa flip (AK near D9 edge), resolver near D9 edge |
| Engine | Meeus VSOP87 + Lahiri ayanamsa (same as Kundli); mean node for Rahu |
| Cost / privacy | Free (Rs 0); 100% client-side, no birth data leaves the browser |
The Ishta Devata is the personal deity - the divine form a tradition takes a person to be naturally oriented toward. Jaimini astrology locates this in the chart through the Karakamsa: since the Atmakaraka signifies the soul, its navamsa sign is read as the soul’s seat, and the 12th house from it - the house of moksha (liberation) - shows the deity associated with the soul’s onward path.
Two things this is not. It is not a restriction: the tradition itself treats the Ishta Devata as a signpost, and people worship whichever form they are drawn to. And it is not a prediction - the output here is a traditional association, shown with its sources, never a claim about you or an instruction to change your practice.
Step 1 - Atmakaraka. Rank the grahas by degree-within-sign; the highest is the Atmakaraka (AK), the soul significator. This tool uses the 8-karaka scheme by default (Rahu included with its degree reversed, Ketu excluded) with a 7-karaka toggle - see our Chara Karaka Calculator for the full ranking and the honest 7-vs-8 scheme note.
Step 2 - Karakamsa. Find the AK’s sign in the navamsa (D9). That sign is the Karakamsa. Everything from here is read in the D9 - a placement in the rashi chart (D1) never substitutes. You can see your full D9 in the Navamsa Calculator.
Step 3 - the 12th from the Karakamsa. Count twelve signs from the Karakamsa (counting it as the first). A planet sitting there is the Ishta Devata indicator. If the sign is empty, planets aspecting it by graha drishti - evaluated on the D9 - are read; if nothing aspects it either, the lord of the sign stands in. The tool names which rule fired, because the three readings carry different confidence. One special case: when Rahu is itself the Atmakaraka, the 12th is counted in reverse, because the nodes move anti-zodiacally.
Each graha carries two traditional associations, and this tool shows both rather than silently blending them: the primary deity taught in contemporary Jaimini practice (P.V.R. Narasimha Rao’s tables, variants disclosed), and the classical Dashavatara mapping of the grahas to Vishnu’s ten avatars (Brihat Parashara Hora Shastra ch. 87).
| Graha | Primary deity (variants) | Dashavatara |
|---|---|---|
| Sun | Shiva, Rama | Rama |
| Moon | Parvati, Gauri (Divine Mother) | Krishna |
| Mars | Subramanya (Kartikeya), Narasimha, Hanuman | Narasimha |
| Mercury | Vishnu | Buddha |
| Jupiter | Guru, Samba Shiva | Vamana |
| Venus | Lakshmi, Divine Mother | Parashurama |
| Saturn | Narayana, Kurma, Kali | Kurma |
| Rahu | Durga, Balaji (Venkateswara) | Varaha |
| Ketu | Ganesha | Matsya |
Where a graha lists several names, the first is the common primary and the rest are attested variants - Saturn (Narayana / Kurma / Kali), Jupiter (Guru / Samba Shiva), and Mercury (Vishnu in the primary table, Buddha in the Dashavatara) vary the most between sources.
No Shadbala. When several planets qualify, the primary indicator is chosen by a disclosed two-step rule - dignity in the D9 (exalted or own sign, ranked equally), then rashi-chart degree - and every indicator is listed. That is an ordering convention, not a planetary-strength computation, and the tool never labels any indicator “strongest”.
No remedies, mantras, or worship prescriptions. The output is a traditional association with its sources. What you do with it is yours.
One method, disclosed forks. The tool computes the D9 Karakamsa convention with PVR graha drishti for the aspect step. Two documented alternatives it does not compute: P.V.R. Narasimha Rao’s personal preference for the D20 (Vimsamsa) in deity matters, and Sanjay Rath’s use of rasi drishti (sign aspect) rather than graha drishti for the aspecting step. Blending methods silently is how most calculators disagree with each other without saying why.
The result rests on two birth-time-sensitive readings, and the tool flags each specifically instead of a vague “approximate” note. First, the Atmakaraka’s identity: decided by fine degree differences, so a near-tie between two grahas - or the AK sitting within about 0.3 deg of a D1 sign boundary - means a different graha could be the AK. In a near-tie the tool computes every candidate branch and shows each reading side by side. Second, navamsa edges: D9 signs flip every 3 deg 20 min of motion, so an AK within about 0.5 deg of a navamsa edge could flip the Karakamsa itself, and an occupant or aspecting planet near its own edge could move in or out of the 12th. Each case gets its own badge with a verify-your-birth-time note. The sign-lord fallback carries no such badge - the lord of a sign is fixed, whatever the clock says.
This is also why the form requires a birth time - unlike a sun-sign reading, nothing here can be computed from a date alone.
The Ishta Devata is the personal or chosen deity - the divine form a person is traditionally taken to have a natural affinity for. In Jaimini astrology it is read from the Karakamsa: the planet(s) connected with the 12th sign from the Karakamsa indicate which deity the tradition associates with the soul's path. It is a devotional signpost in the chart, not an instruction or a restriction - people worship whichever form they are drawn to.
The Karakamsa is the navamsa (D9) sign occupied by your Atmakaraka - the graha with the highest degree-within-sign in your chart, read as the significator of the soul. Treating that navamsa sign as a reference lagna, Jaimini astrology reads the 12th sign from it for the Ishta Devata: the 12th is the house of moksha (liberation), and the deity connected with it is taken as the guide toward it.
Three steps. First, find your Atmakaraka: the graha with the highest degree-within-sign (this tool uses the 8-karaka scheme by default, with Rahu's degree reversed and Ketu excluded). Second, find the Atmakaraka's navamsa (D9) sign - that is the Karakamsa. Third, count to the 12th sign from the Karakamsa and look at the planet(s) there: an occupant indicates the Ishta Devata via its traditional deity association. If the 12th is empty, planets aspecting it are read, and failing that, the lord of that sign. Enter your birth details above and the tool does all three steps.
It depends on which planet is connected with the 12th from your Karakamsa. Each graha carries a traditional deity association - for example the Sun with Shiva or Rama, the Moon with Parvati, Mars with Subramanya (Kartikeya), Mercury with Vishnu, Jupiter with Guru or Samba Shiva, Venus with Lakshmi, Saturn with Narayana (with Kurma and Kali as attested variants), Rahu with Durga, and Ketu with Ganesha. Use the calculator above with your date, time, and place of birth to resolve which planet - and therefore which association - applies to your chart.
They answer two different questions from two strands of the tradition. The primary-deity column follows the associations taught in contemporary Jaimini practice (P.V.R. Narasimha Rao's tables), naming the deity each graha is most commonly linked to, with attested variants. The Dashavatara column follows the classical mapping of the nine grahas to Vishnu's ten avatars (Brihat Parashara Hora Shastra ch. 87): Sun-Rama, Moon-Krishna, Mars-Narasimha, Mercury-Buddha, Jupiter-Vamana, Venus-Parashurama, Saturn-Kurma, Rahu-Varaha, Ketu-Matsya. Both are shown so you can see each tradition's answer rather than a silent blend.
Sources genuinely differ for a few grahas. Saturn is variously associated with Narayana, Kurma, or Kali; Jupiter with Guru (the preceptor principle) or Samba Shiva; Mercury is Vishnu in the primary table but Buddha in the Dashavatara mapping. Rather than silently picking one, the tool lists the common primary first and the attested variants after it, and shows the Dashavatara column separately.
Yes. The nodes count as occupants of the 12th from the Karakamsa like any other graha, and they carry their own traditional associations: Rahu with Durga (Dashavatara: Varaha) and Ketu with Ganesha (Dashavatara: Matsya). One special rule applies when Rahu is itself the Atmakaraka: because the nodes move in apparent reverse, the 12th from the Karakamsa is counted in the reverse (anti-zodiacal) direction. The tool applies and labels that rule automatically.
The tradition provides a cascade, and the tool labels which rule fired. First choice: planet(s) occupying the 12th from the Karakamsa. If none, planets ASPECTING that sign by graha drishti, evaluated on the navamsa (every planet aspects the 7th from itself; Mars also the 4th and 8th, Jupiter the 5th and 9th, Saturn the 3rd and 10th). If nothing aspects it either, the LORD of that sign stands in - shown as the sign-lord fallback.
All of them are indicators and all are shown. The tool marks one as primary using a simple, disclosed rule: a planet that is exalted or in its own sign in the navamsa ranks first (those two count equally as 'dignified'), and within that, the planet with the higher degree-within-sign in the rashi (D1) chart leads. This is a transparent ordering convention - not a Shadbala or planetary-strength computation, which this tool does not perform.
No, and the tool does not claim to. When several planets qualify, the primary indicator is selected by dignity (exalted or own sign in the navamsa, ranked equally) and then by rashi-chart degree. Full strength frameworks like Shadbala or Vimsopaka Bala are separate computations with their own assumptions; presenting a simple dignity-plus-degree ordering honestly beats implying a strength analysis that was never run.
The classical convention - and what this tool computes - reads the Karakamsa in the navamsa (D9). It is worth knowing that P.V.R. Narasimha Rao, whose Jaimini teaching this tool otherwise follows, personally prefers the Vimsamsa (D20), the divisional chart of worship and spiritual practice, for deity matters. The D20 needs its own divisional computation and a much finer 1 deg 30 min division, making it more birth-time-sensitive. This tool ships the D9 convention and discloses the D20 position rather than blending the two.
Two reasons, and the tool flags both. First, the Atmakaraka is decided by fine degree differences - if two grahas are nearly tied, or your AK sits near a sign boundary, a small time error can change WHICH planet is the AK (the tool then shows every candidate branch). Second, navamsa signs flip every 3 deg 20 min of motion, so the AK near a navamsa edge can flip the Karakamsa itself, and a resolver planet near an edge can move in or out of the 12th. Each case gets its own provisional badge with a verify-your-birth-time note.
This page is the canonical surface for the following terms: Ishta Devata, Ishta Devta, Ishtha Devata, Isht Dev, Ishta Deva, Karakamsa, Karakamsha, Ishta Devata calculator by date of birth. Use whichever spelling your tradition uses; the calculation is the same.