A varga— "division" — is a recomputed chart at a finer grain. Each sign is divided into n equal parts; the part containing a planet maps to a new sign in the Dn(divisional-n) chart. Each divisional is read independently, but only in light of its subject. The D9 never stands alone — it refines the D1. The D10 does not replace the D1; it isolates career.
The classical system catalogues sixteen divisional charts — the Ṣoḍaśavarga — each dedicated to a specific life domain. Most modern practice works with a subset: D1, D9, D10, D7, D12, D30 are in wide use; D16, D20, D24, D27, D40, D45, D60 are more specialized.
The Ṣoḍaśavarga
| Varga | Divisions | Part size | Domain |
|---|---|---|---|
| D1 Rāśi | 1 | 30° | Body, overall life structure |
| D2 Horā | 2 | 15° | Wealth |
| D3 Drekkāṇa | 3 | 10° | Siblings, courage, effort |
| D4 Caturthāṃśa | 4 | 7°30′ | Home, vehicles, fortune |
| D7 Saptāṃśa | 7 | 4°17′ | Children, legacy |
| D9 Navāṃśa | 9 | 3°20′ | Marriage, dharma, planetary strength |
| D10 Daśāṃśa | 10 | 3° | Career, public work, reputation |
| D12 Dvādaśāṃśa | 12 | 2°30′ | Parents, ancestral karma |
| D16 Ṣoḍaśāṃśa | 16 | 1°52′30″ | Vehicles, happiness from conveyances |
| D20 Vimśāṃśa | 20 | 1°30′ | Spiritual practice, worship |
| D24 Caturviṃśāṃśa | 24 | 1°15′ | Education, learning |
| D27 Saptaviṃśāṃśa | 27 | 1°6′40″ | Strengths and weaknesses |
| D30 Triṃśāṃśa | 30 | 1° | Misfortunes, difficulties |
| D40 Khavedāṃśa | 40 | 45′ | Maternal lineage |
| D45 Akṣavedāṃśa | 45 | 40′ | Paternal lineage |
| D60 Ṣaṣṭyāṃśa | 60 | 30′ | Past karma, general effects |
How a division is calculated
Each divisional has a classical rule determining where the first part starts from. The D9 rule is the most important to understand because it extends to many other vargas:
D9 (Navāṃśa) calculation
Each sign is divided into 9 parts of 3°20' each. The first part maps to a specific starting sign, which depends on the modality of the occupied sign:
- Movable signs (Aries, Cancer, Libra, Capricorn): navāṃśas start from the sign itself.
- Fixed signs (Taurus, Leo, Scorpio, Aquarius): navāṃśas start from the 9th sign from itself.
- Dual signs (Gemini, Virgo, Sagittarius, Pisces): navāṃśas start from the 5th sign from itself.
A planet at 12° of Aries (a movable sign) falls in the 4th navāṃśa (12° ÷ 3°20' = 3.6 → 4th partition counting from 1). Its navāṃśa sign is the 4th from Aries — Cancer. The same planet in Taurus (a fixed sign) at 12° would fall in Capricorn (starting count from Capricorn, the 9th from Taurus, and moving four places).
The most consulted vargas
D1 — Rāśi
The birth chart itself. All other vargas reference it; reading a divisional without first reading the D1 is like reading a paragraph without the book. Covers body, overall direction, character.
D9 — Navāṃśa
The single most-used divisional chart after the D1. Classical texts describe the D9 as the testof the D1 — a planet's D9 position reveals whether its D1 promises will mature. The D9 is specifically consulted for marriage: the 7th house of the D9, its lord, and Venus (for males) or Jupiter (for females) in the D9 are the primary indices.
D10 — Daśāṃśa
Career and profession. The 10th house of the D10, its lord, and the planet generating the yogakāraka combination in the D1 are the primary career indices. The D10 is consulted before major career decisions.
D7 — Saptāṃśa
Children. For males the 5th of the D7 is most important; for females the 5th is used but the 9th (children-of-children) also matters. A weak D7 5th with no mitigation is a classical indicator of difficulty with progeny; a strong D7 with benefics is a reliable indicator of fertile and auspicious children.
D12 — Dvādaśāṃśa
Parents and ancestral karma. The 9th house of the D12 represents the father and paternal lineage; the 4th represents the mother and maternal lineage. Pitṛ doṣa (ancestral karmic burden) is read primarily from the D12.
D30 — Triṃśāṃśa
Difficulties and chronic afflictions. Unlike most vargas, the D30 has a distinct sign assignment rule: only five signs appear in each sign's D30 (the rulers of Mars, Saturn, Jupiter, Mercury, and Venus), with no sign falling in Sun-ruled or Moon-ruled zones. This makes the D30 a diagnostic chart — it isolates the sources of affliction to the five malefic-capable planets.
Saptavarga and Dasavarga — varga-averaged dignity
A planet's strength is not just its D1 dignity — it is the dignity it holds across multiple vargas combined. Classical shadbala (six-strengths) uses saptavarga — seven vargas (D1, D2, D3, D7, D9, D12, D30) — to compute a weighted dignity strength. A planet exalted in the D1 but debilitated across most of saptavarga is weak in practice; one strong across saptavarga delivers even if its D1 is mediocre.
When to trust a varga
Birth-time precision governs whether a varga is reliable. Each division amplifies small time errors:
| Varga | Amplification | Recommended accuracy |
|---|---|---|
| D1 | 1× | ± 4 minutes — rough |
| D9 | 9× | ± 30 seconds — refined |
| D10 | 10× | ± 30 seconds |
| D30 | 30× | ± 10 seconds |
| D60 | 60× | Needs rectification — most practitioners do not use D60 without first rectifying birth time against life events |
the app presents D9 alongside D1 on the dashboard because D9 is robust enough to read at typical birth-time accuracy and delivers the largest incremental insight per division.