A jathakam (also called a kundli or birth chart) is a Vedic astrological reading of the position of the planets at the exact moment of your birth. It analyses your lagna (ascendant), janma rashi (moon sign), nakshatra, the twelve houses, planetary aspects, dashas (life periods), and any doshas. AIJathakam generates a complete 20-section AI jathakam online from real Swiss Ephemeris calculations using the Lahiri ayanamsa.

What is porutham and how do I check porutham online?

Porutham is the traditional Vedic compatibility analysis between a prospective bride and groom, evaluated across ten parameters: Dina, Gana, Mahendra, Sthree Dheerga, Yoni, Rasi, Rajju, Vedha, Vasya and Graha Maitri. With AIJathakam you can check porutham online by entering both partners birth details — the report covers all ten poruthams plus Chevvai (Mangal) dosha overlap and dasha synergy.

Is an AI jathakam accurate?

Planetary positions are calculated deterministically using Swiss Ephemeris with Lahiri ayanamsa — the same standard professional jyotishis use. The AI only writes the interpretation; it never invents or estimates planetary degrees. Accuracy of the resulting reading depends on your birth time being correct.

How long does an AI jathakam report take?

A complete jathakam typically generates in 1 to 3 minutes after payment. A porutham takes a similar amount of time. The Him & Her bundle generates two jathakams plus a porutham.

What does the AI jathakam report contain?

Each AI jathakam report contains 20 sections: birth details, lagna analysis, janma rashi & nakshatra, full planetary positions table, South Indian birth chart, twelve house analysis, planetary aspects, yogas, dosha analysis (Chevvai, Kala Sarpa, Sade Sati, Kemadruma, Guru Chandala, Pitru), gemstone recommendation, full Vimshottari dasha sequence with dates, current dasha analysis, career, marriage, health, wealth, children, education, spiritual path, and Kerala jyotisha specific notes.

Do I have Mangal (Chevvai) dosha?

Mangal dosha (also called Chevvai dosham) is determined by the placement of Mars in your chart, checked from the lagna, the Moon and Venus. It is not always severe — many cancellation factors exist (e.g. Mars in own sign, conjunction with benefics). Your AI jathakam report identifies whether Chevvai dosha is present, its strength, any cancellation, and traditional remedies.

How is a nakshatra different from a rashi?

A rashi (zodiac sign) is one of 12 sectors of 30° each; a nakshatra (lunar mansion) is one of 27 sectors of 13°20' each. So nakshatras are a finer-grained division — most rashis contain about 2-3 nakshatras. The rashi gives you the broad emotional terrain (your "moon sign"); the nakshatra gives you the specific landscape including personality signature, ruling planet, and life-period sequence.

How do I find my janma nakshatra?

You need your date, time, and place of birth. Your janma nakshatra is determined by where the moon was at the exact moment of your birth — specifically, which 13°20' slice of the zodiac the moon occupied. You can find it via any Vedic astrology tool that uses Lahiri ayanamsa (sidereal zodiac), including AIJathakam — the report tells you your nakshatra and pada in the first section.

What's the difference between janma nakshatra and lagna nakshatra?

Janma nakshatra is determined by the moon's position at birth. Lagna nakshatra is determined by the lagna (ascendant) — the rising sign at birth. They're both important but tell you different things: janma nakshatra speaks to your emotional and inner life; lagna nakshatra speaks to your personality, body, and life direction. A complete jathakam includes both.

Why does my pada matter?

Each nakshatra is divided into 4 padas of 3°20' each, and each pada falls in a different navamsa rashi. This adds significant nuance — two people with the same nakshatra but different padas can express the nakshatra's qualities quite differently. For example, an Anuradha pada 1 native (Sagittarius navamsa) tends toward dharmic, philosophical work while an Anuradha pada 4 native (Pisces navamsa) tends toward spiritual or healing work. Pada is essential for accurate reading.

What is my nakshatra lord and why is it important?

The nakshatra lord is the planet that rules your janma nakshatra (e.g. Saturn rules Anuradha, Jupiter rules Punarvasu, Ketu rules Ashwini and Mula). The lord matters for two reasons: (1) the qualities of that planet shape your personality signature; (2) you were born into that planet's mahadasha — the first "life chapter" of your 120-year Vimshottari cycle. Your entire life timeline flows from this single fact.

Nakshatras Explained: The 27 Lunar Mansions and Why They Matter

If you've ever wondered why two people with the exact same moon sign can be so wildly different — one calm and contemplative, the other restless and pioneering — the answer is usually nakshatra.

Your janma nakshatra (birth nakshatra) is, in many ways, the highest-resolution piece of your jathakam. Here's why it matters and how to read it.

What a nakshatra is

The 360° zodiac is divided two ways in Vedic astrology:

12 rashis of 30° each (the zodiac signs everyone knows)
27 nakshatras of 13°20' each (the lunar mansions)

The 27 nakshatras are an older, more granular subdivision based on the moon's daily motion — the moon traverses about one nakshatra per day. Each nakshatra has its own ruling planet, presiding deity, symbol, and personality signature.

Where your janma rashi (moon sign) tells you the broad emotional terrain, your janma nakshatra tells you the specific landscape — the trees, paths, and weather of your inner life.

The 27 nakshatras

#	Nakshatra	Lord	Rashi	Deity	Pada-1 padas
1	Ashwini	Ketu	Mesha	Ashvini Kumars	Mesha-Karka
2	Bharani	Venus	Mesha	Yama	Simha-Vrischika
3	Krittika	Sun	Mesha-Vrishabha	Agni	Dhanu-Meena
4	Rohini	Moon	Vrishabha	Brahma	Mesha-Karka
5	Mrigashira	Mars	Vrishabha-Mithuna	Soma	Simha-Vrischika
6	Ardra	Rahu	Mithuna	Rudra	Dhanu-Meena
7	Punarvasu	Jupiter	Mithuna-Karka	Aditi	Mesha-Karka
8	Pushya	Saturn	Karka	Brihaspati	Simha-Vrischika
9	Ashlesha	Mercury	Karka	Nagas	Dhanu-Meena
10	Magha	Ketu	Simha	Pitrs	Mesha-Karka
11	Purva Phalguni	Venus	Simha	Bhaga	Simha-Vrischika
12	Uttara Phalguni	Sun	Simha-Kanya	Aryaman	Dhanu-Meena
13	Hasta	Moon	Kanya	Savitri	Mesha-Karka
14	Chitra	Mars	Kanya-Tula	Tvashtar	Simha-Vrischika
15	Swati	Rahu	Tula	Vayu	Dhanu-Meena
16	Vishakha	Jupiter	Tula-Vrischika	Indra-Agni	Mesha-Karka
17	Anuradha	Saturn	Vrischika	Mitra	Simha-Vrischika
18	Jyeshtha	Mercury	Vrischika	Indra	Dhanu-Meena
19	Mula	Ketu	Dhanu	Nirriti	Mesha-Karka
20	Purva Ashadha	Venus	Dhanu	Apas	Simha-Vrischika
21	Uttara Ashadha	Sun	Dhanu-Makara	Vishvedevas	Dhanu-Meena
22	Shravana	Moon	Makara	Vishnu	Mesha-Karka
23	Dhanishta	Mars	Makara-Kumbha	Vasus	Simha-Vrischika
24	Shatabhisha	Rahu	Kumbha	Varuna	Dhanu-Meena
25	Purva Bhadrapada	Jupiter	Kumbha-Meena	Aja Ekapada	Mesha-Karka
26	Uttara Bhadrapada	Saturn	Meena	Ahir Budhnya	Simha-Vrischika
27	Revati	Mercury	Meena	Pushan	Dhanu-Meena

The lord column is critical — it's the planet that rules each nakshatra. The lord of your janma nakshatra is the planet whose mahadasha you were born into (via the Vimshottari dasha system) and that controls a huge amount of your life timeline.

How to find your nakshatra

You need:

Date, time, and place of birth
The exact position of the moon at your birth (which a [jathakam calculation](https://www.aijathakam.com/jathakam) provides)

The moon's degree position determines which 13°20' slice it falls in — that's your janma nakshatra. The first quarter of that slice is pada 1, the next quarter is pada 2, and so on.

The four padas (quarters)

Each nakshatra is divided into 4 padas of 3°20' each. Each pada falls in a different navamsa rashi, which adds a second layer of meaning.

For example:

Anuradha Pada 1 → falls in Sagittarius navamsa → adds Jupiterian, philosophical, dharmic flavour
Anuradha Pada 4 → falls in Pisces navamsa → adds spiritual, dreamy, devotional flavour

Two people both born under "Anuradha" can be quite different depending on their pada. Pada 1 might end up in academia or counselling; Pada 4 in healing or contemplative work. The base nakshatra gives the personality signature; the pada gives the specific direction.

What your janma nakshatra reveals

Beyond the moon-sign reading, your janma nakshatra speaks to:

Inner emotional landscape — much more specific than rashi alone
The mahadasha you started in — your first "life chapter" of the 120-year cycle
Specific personality archetypes — symbol, deity, and lord all point to behavioural patterns
Karmic themes — Vedic tradition holds that the janma nakshatra carries information about lessons brought from past lives

For example, Anuradha natives (covered in some detail in our [Sade Sati article](/blog/sade-sati-saturn-7-and-half-years-explained)) are often Mitra-blessed — disciplined in friendship, capable of organising group efforts, with a deeply rooted spiritual instinct that grows over time.

Ashwini natives, ruled by Ketu and presided over by the celestial twin physicians, often show pioneering instinct, healing capacity, and a need to be the first one through any door.

Mula natives, ruled by Ketu and presided over by Nirriti (the goddess of dissolution), often have the gift and the burden of breaking things down to their roots — sometimes a powerful research instinct, sometimes a tendency to disrupt situations they didn't need to disrupt.

Each nakshatra is its own essay; a good [AI jathakam report](https://www.aijathakam.com/jathakam) goes into the specific signature of yours.

Nakshatra-based compatibility

In marriage matching (porutham), nakshatras drive most of the compatibility checks — Dina, Gana, Mahendra, Yoni, Rajju, Vedha all use nakshatra positions to compute their match. This is why Vedic compatibility is fundamentally nakshatra-based, not rashi-based.

Two people with identical rashis can have extremely different nakshatras and therefore very different compatibility profiles — which is why the [ten-porutham analysis](/blog/ten-poruthams-explained-marriage-compatibility) is more accurate than just checking moon-sign-to-moon-sign compatibility.

The Vimshottari dasha connection

The single most consequential thing about your janma nakshatra is that it determines your life-period (dasha) sequence.

Vedic astrology assigns a specific 120-year cycle of "mahadashas" to every chart, where each planet rules for a fixed number of years (Sun 6, Moon 10, Mars 7, Rahu 18, Jupiter 16, Saturn 19, Mercury 17, Ketu 7, Venus 20).

Which planet you start with — and therefore the order of all your subsequent dashas — is determined by your janma nakshatra. Specifically, the lord of your janma nakshatra (column 3 in the table above) is the mahadasha you were born into.

So if you were born in Anuradha (Saturn-ruled), you were born into Saturn mahadasha. If you were born in Punarvasu (Jupiter-ruled), you started in Jupiter mahadasha. The whole 120-year sequence flows from there.

We covered the Vimshottari system in detail in [a separate guide](/blog/vimshottari-dasha-vedic-life-timeline). The point here: your nakshatra isn't just a static label — it's the seed that grows your entire timeline.

The four karmic groups

Beyond the lord and pada, the 27 nakshatras are also classified into four karmic groups based on their purpose:

Dharma (purpose, alignment) — Ashwini, Magha, Mula, plus 6 others
Artha (resources, building) — Bharani, Purva Phalguni, Purva Ashadha, plus 6 others
Kama (desire, connection) — Krittika, Uttara Phalguni, Uttara Ashadha, plus 6 others
Moksha (liberation) — Rohini, Hasta, Shravana, plus 6 others

This isn't decisive but it's a useful lens — your janma nakshatra's karmic group hints at your dominant life-themes.

Why the rashi alone misses too much

If someone tells you "I'm a Vrischika moon" — fine, but it's like saying "I live in California." There are 8 nakshatras across Vrischika depending on the degree (Vishakha pada 4, Anuradha all 4 padas, Jyeshtha all 4 padas, Mula all 4 padas — actually only spans these but you get the idea). A Vishakha-pada-4 Vrischika moon and an Anuradha-pada-1 Vrischika moon are quite different people, classically.

This is why knowing your nakshatra is much more useful than knowing your moon sign. It's the difference between knowing your country and knowing your street address.

How to use this knowledge

If you've never had a nakshatra reading:

Generate an [AI jathakam](https://www.aijathakam.com/jathakam) — it tells you your janma nakshatra, pada, and lord, plus interprets the signature for your specific chart
Look up the mythology — each nakshatra has classical stories that often resonate surprisingly well with the native's life
Note your mahadasha lord (which is your nakshatra's lord) — that's the planet whose qualities will shape your timeline most
If matching for marriage, get the nakshatra-based [porutham analysis](https://www.aijathakam.com/porutham) rather than just rashi-to-rashi compatibility

The nakshatras are an old, sophisticated, lived system. Worth taking seriously.