The 8 Pillars of Marriage: A Deep Dive into the Ashtakoota System
The Ashtakoota ("eight-point") system is the most widely used method of marriage matching in Vedic astrology. It evaluates 8 specific dimensions of compatibility, each assigned a point value, totaling 36. Every family seeking a horoscope match has heard the question: "How many Gunas matched?"
But most people only see the final number. They don't understand what each pillar actually measures -- or why B.V. Raman insisted on looking deeper. The score alone is a starting point, not a verdict. Each of the 8 Kutas probes a distinct dimension of the couple's life together, and appreciating these dimensions is essential to understanding why some marriages thrive while others struggle despite a "good" score.
"There are 12 factors, to be considered in order to judge the suitability for a proposed matrimonial alliance out of which eight are supremely important."
Let's examine each of the 8 supreme factors in the order Raman presented them.

1. Dina Kuta (3 Points)
What it measures: Daily fortune, health, and general luck in married life. Dina Kuta deals with the day-to-day rhythm of the couple's existence together -- their shared health tendencies, routine prosperity, and the small but accumulating currents of everyday fortune.
How it works: Count the boy's birth constellation (Nakshatra) from the girl's birth constellation, then divide the result by 9. If the remainder is 2, 4, 6, 8, or 0, the Dina Kuta is considered favorable and the full 3 points are awarded.
"The number of units of compatibility assigned to this Kuta is 3 in case agreement is found."
A bad Dina Kuta does not spell disaster, but it indicates minor daily friction and health-related irritations that can wear down a relationship over time. Think of it as the background hum of married life -- when it's in tune, you barely notice it; when it's off, every small annoyance is amplified.
2. Gana Kuta (6 Points)
What it measures: Temperament and character compatibility. This is one of the heavier-weighted Kutas at 6 points because temperament mismatches are among the most common causes of marital discord.
The 27 Nakshatras are divided into three temperament groups:
- Deva (Divine/Pious): Ashwini, Mrigasira, Punarvasu, Pushya, Hasta, Swati, Anuradha, Shravana, Revati
- Manushya (Human/Mixed): Bharani, Rohini, Ardra, Purva Phalguni, Uttara Phalguni, Purva Ashadha, Uttara Ashadha, Purva Bhadrapada, Uttara Bhadrapada
- Rakshasa (Dominant/Self-willed): Krittika, Aslesha, Magha, Chitra, Vishakha, Jyeshtha, Moola, Dhanishta, Shatabhisha
"Compatibility of temperament and not of course identity of temperament is called for in astrology. A difference of temperament may be harmonious and complementary."
The rules for Gana compatibility are as follows:
- Same Gana: Excellent compatibility -- full 6 points awarded.
- Deva + Manushya: Passable -- a workable combination with some adjustment needed.
- Deva/Manushya man + Rakshasa girl: Problematic -- significant temperament clashes likely.
- Rakshasa man + Deva/Manushya girl: Passable -- the dynamic tends to be more manageable in this direction.
"If marriage is brought about between prohibited Ganas there will be quarrels and disharmony."
Note that "Rakshasa" does not mean evil or demonic in this context. It refers to a strong-willed, independent, and assertive temperament. Problems arise not from the temperament itself but from the friction when it meets a fundamentally incompatible disposition.
3. Yoni Kuta (4 Points)
"Yoni means sex and by Yoni Kuta is implied sexual compatibility."
What it measures: Sexual compatibility and physical harmony between the couple. Each of the 27 Nakshatras is assigned an animal symbol and a gender designation (male or female). The interplay between the animal symbols of the couple's birth stars determines the level of physical compatibility.
Best case: Both partners share the same animal symbol with complementary genders (one male star, one female star). This indicates natural physical harmony and full 4 points are awarded.
Worst case: The couple's animal symbols are natural enemies. Raman lists the hostile pairs explicitly:
"Cow and tiger; elephant and lion; horse and buffalo; dog and hare; serpent and mongoose; monkey and goat; and cat and rat."
If the couple's Nakshatras correspond to hostile animal pairs, the Yoni Kuta score drops to zero and significant physical incompatibility is indicated.
Raman underscored the importance of this factor by citing the work of the psychologist Ellis:
"Out of 500 consecutive cases coming for advice, all but one showed sexual maladjustment as a complicating factor."
This statistic, drawn from a Western clinical setting, validates the ancient Vedic concern with physical compatibility as a cornerstone of marital stability.
4. Rasi Kuta (7 Points)
What it measures: Emotional harmony based on the relative positions of the couple's Moon signs (Rasis). At 7 points, this is the second-highest weighted Kuta, reflecting the central importance of emotional rapport in marriage.
The position of the boy's Moon sign relative to the girl's determines the effect:
- 1st/7th from each other: Excellent -- indicates health, agreement, and happiness.
- 2nd from boy / 12th from girl: Evil effects indicated.
- 12th from boy / 2nd from girl: Longevity is promoted.
- 3rd from girl: Happiness is indicated.
- 3rd from boy: Misery is indicated.
- 4th from girl: Great wealth is indicated.
- 4th from boy: Poverty is indicated.
- 5th from girl: Prosperity is indicated.
- 5th from boy: Unhappiness is indicated.
- 6th from boy: Loss of children is indicated.
- 6th from girl: Progeny prospers.
However, there is a crucial exception that can override the negative indications:
"When both the Rasis are owned by one planet or if the lords of the two Rasis happen to be friends, the evil attributed above to the inauspicious disposition of Rasis gets cancelled."
This exception is key. It means that even when the Moon signs fall in unfavorable positions, if their planetary lords share a friendship or are the same planet, the negative effects are neutralized. This is why a skilled astrologer never simply counts positions -- they always check the lordship relationships.
5. Graha Maitri (5 Points)
"This is the most important Kuta inasmuch as it deals with the psychological dispositions of the Couple."
What it measures: Mental wavelength and psychological harmony. Despite being weighted at 5 points (less than Rasi or Nadi), B.V. Raman considered this the most important Kuta because it governs whether the couple can genuinely understand each other at a mental and emotional level.
How it works: The friendship between the lords of the couple's Moon signs (Janma Rasi lords) is assessed. The Vedic planetary friendship scheme classifies every pair of planets as friends, neutrals, or enemies.
- Both lords are friends: Full agreement -- 5 points awarded. The couple shares a natural psychological rapport.
- One friend, one neutral: Passable -- the relationship can work with some effort.
- Both lords are neutral: Ordinary compatibility -- neither strong attraction nor repulsion.
- Both lords are enemies: No agreement -- 0 points. Fundamental psychological disconnect.
There is an important exception via the Navamsa (the 9th divisional chart):
"Even when there is no friendship between the Janma Rasi lords, Rasi Kuta may be said to exist if friendship prevails between the planets owning the Navamsas occupied by the Moon."
This means that even when the surface-level planetary lords are unfriendly, the deeper Navamsa lords may reveal a hidden compatibility. Raman issued a stern caution about hasty rejections:
"One will have to be very careful in the assessment of these factors and on superficial grounds no horoscope should be rejected."
6. Vasya Kuta (2 Points)
What it measures: Magnetic attraction and amenability -- who "controls" or influences whom in the relationship. Vasya reveals the power dynamic between the couple, indicating which partner is more naturally inclined to accommodate or yield to the other.
"This is important as suggesting the degree of magnetic control or amenability the wife or husband would be able to exercise on the other."
Each zodiac sign has specific signs that are "Vasya" (amenable) to it:
- Aries: Leo, Scorpio
- Taurus: Cancer, Libra
- Gemini: Virgo
- Cancer: Scorpio, Sagittarius
- Leo: Libra
- Virgo: Gemini, Pisces
- Libra: Virgo, Capricorn
- Scorpio: Cancer
- Sagittarius: Pisces
- Capricorn: Aries, Aquarius
- Aquarius: Aries
- Pisces: Capricorn
At only 2 points, Vasya Kuta carries relatively low weight in the overall scoring. However, it provides important insight into the power dynamic of the relationship. When Vasya is present, one partner naturally exerts a gentle, harmonious influence over the other, leading to smoother conflict resolution and a more balanced partnership.

7. Varna Kuta (1 Point)
What it measures: Spiritual development level. Varna in this astrological context does not refer to social caste but to the spiritual grade or inner developmental stage indicated by the Moon sign.
The four grades and their associated signs are:
- Brahmin (Highest): Pisces, Scorpio, Cancer -- representing contemplative, spiritual, and intuitive natures.
- Kshatriya: Leo, Sagittarius, Libra -- representing courageous, noble, and justice-oriented natures.
- Vaisya: Aries, Gemini, Aquarius -- representing enterprising, communicative, and practical natures.
- Sudra: Taurus, Virgo, Capricorn -- representing grounded, industrious, and material-oriented natures.
"A girl belonging to a higher grade of spiritual development should not be mated to a boy of lesser development."
Varna Kuta carries only 1 point -- the lowest weight of all 8 Kutas. But this does not diminish its importance. Rather, it represents the deepest, most subtle dimension of compatibility. A shared spiritual wavelength creates an invisible bond that sustains the relationship through the hardest trials, while a mismatch at this level can manifest as a vague but persistent sense that the partners are "on different paths."
8. Nadi Kuta (8 Points)
"This is considered to be the most important and at the same time the most significant Kuta."
What it measures: Physiological and genetic compatibility. At 8 out of 36 points, Nadi Kuta carries the heaviest weight of any single factor -- a full 22% of the total score. This weighting reflects the ancients' understanding that biological compatibility is the bedrock upon which all other dimensions of marital success are built.
The word "Nadi" in this context refers to pulse or nervous energy. The 27 Nakshatras are classified into three physiological humours (doshas):
- Vata (Wind): Ashwini, Ardra, Punarvasu, Uttara Phalguni, Hasta, Jyeshtha, Moola, Shatabhisha, Purva Bhadrapada
- Pitta (Bile): Bharani, Mrigasira, Pushya, Purva Phalguni, Chitra, Anuradha, Purva Ashadha, Dhanishta, Uttara Bhadrapada
- Sleshma (Phlegm): Krittika, Rohini, Aslesha, Magha, Swati, Vishakha, Uttara Ashadha, Shravana, Revati
The rule is straightforward: If both partners belong to the same Nadi, it is called Nadi Dosha and 0 points are scored. If they belong to different Nadis, the full 8 points are awarded.
Same Nadi is considered problematic because it suggests similar physiological constitutions, which the ancient texts associated with health issues in offspring and a lack of complementary vitality between the partners.
However, Nadi Dosha has specific cancellation conditions:
- Rasi and Rajju Kuta are both present: If these two factors are favorable, the Nadi defect can be overlooked.
- Same Rasi lord: If the same planet rules both partners' Moon signs, the dosha is cancelled.
- Friendly Rasi lords: If the lords of the couple's Moon signs are mutual friends, the defect is neutralized.
Additionally, if the Nakshatra-level Nadi check fails, the compatibility can also be assessed at the Nakshatra Pada (quarter) level for a more granular evaluation, potentially revealing compatibility that a surface-level check would miss.
Beyond the 8: The 4 Hidden Factors
B.V. Raman described 12 factors in total for judging marriage compatibility. While the 8 Kutas above carry point values totaling 36, there are 4 additional factors that carry no points but are equally critical. These are pass/fail checks -- and a failure in any one of them can override even a perfect 36/36 Guna score.
Mahendra
The boy's birth star should be the 4th, 7th, 10th, 13th, 16th, 19th, 22nd, or 25th from the girl's birth star. When Mahendra is present, it promotes the longevity of the marriage, ensures well-being of the couple, and favors the birth of progeny. It acts as a protective layer over the entire union.
Stree-Deergha
The boy's birth star should ideally be more than 9 constellations away from the girl's birth star. This factor specifically ensures the well-being, prosperity, and comfort of the woman in the marriage. When Stree-Deergha is absent, the woman may face hardship or lack of support within the union.
Rajju
Rajju ("rope") symbolizes the thread of married life. The Nakshatras are grouped into five body positions: Siro (head), Kantha (neck), Udara (stomach), Kati (waist), and Pada (foot). If the couple's birth stars fall in the same Rajju group, the consequences can be severe -- ranging from death of a partner to poverty and loss of children, depending on which body position is shared. This is one of the most feared defects in the entire matching system.
Vedha
Vedha means affliction. Certain pairs of Nakshatras are considered to mutually obstruct and repel each other. If the couple's birth stars form a Vedha pair, it creates a fundamental incompatibility that operates at a karmic level, regardless of how many Guna points are scored. A Vedha affliction typically leads to persistent obstacles and unexplained friction in the marriage.
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