---
title: "Porutham: South Indian 10 factors"
method: POST
path: "/vedic/compatibility/porutham"
tags: ["Vedic"]
---

# Porutham: South Indian 10 factors

`POST /vedic/compatibility/porutham`

## Request

- Base URL: `https://api.astroway.info/v1`
- URL: `https://api.astroway.info/v1/vedic/compatibility/porutham`
- Auth: API key in header `X-Api-Key`
- TypeScript: <https://skmtc.dev/astroway/apis/astroway-calculation-api/docs/vedic/compatibility/porutham/post.ts> (a function with typed inputs; its response is checked against the schema)

South Indian ten-factor Porutham (Dasa Porutham): Dinam, Ganam, Mahendram, Stree Deergham, Yoni, Rasi, Rasi Adhipathi, Vasiyam, Rajju, Vedhai. chart1 is the groom, chart2 the bride; counts run from the bride's star to the groom's. Each factor returns verdict (uttamam, madhyamam, adhamam), score (1, 0.5, 0), the rule, its source and basis (classical or manual). Rajju and Vedhai are essential. `school`: tamil (default) or kerala, which adds Papasamyam.

## Query parameters

- `fields` string
- `precision` integer

## Headers

- `Idempotency-Key` string

## Request body

- PoruthamInput: Two charts for South Indian Porutham. chart1 is the groom, chart2 the bride.
  - `chart1` object, required: Groom (counted to). Porutham counts from the bride's star to the groom's.
    - `date` string, required
    - `time` string, required
    - `timezoneOffset` number, nullable: Hours from UTC at the given moment, not minutes. Fractional zones are hours too: 5.5 for India, 5.75 for Nepal, -3.5 for Newfoundland. Defaults to 0, meaning UTC. Ignored when timezone is sent.
    - `timezone` string: IANA zone name such as Europe/Kyiv, or auto to look the zone up from latitude and longitude. The server takes the offset that zone kept at this local date and time, summer time included, and uses it in place of timezoneOffset. A clock time that happened twice takes the first occurrence; one skipped when clocks went forward takes the offset from before the change. Abbreviations such as EST are refused. Before 1970 the tz database is not reliable for every place, so send timezoneOffset when the local clock is known.
    - `latitude` number, required
    - `longitude` number, required
    - `houseSystem` 'P' | 'K' | 'R' | 'C' | 'E' | 'W' | 'B' | 'M' | 'O' | 'A' | 'T' | 'V' | 'D' | 'F' | 'G' | 'H' | 'I' | 'i' | 'L' | 'N' | 'Q' | 'S' | 'U' | 'X' | 'Y'
    - `name` string
    - `city` string
    - `zodiacType` 'tropical' | 'sidereal'
    - `ayanamsaId` number, nullable
    - `ayanamsa` 'fagan-bradley' | 'lahiri' | 'de-luce' | 'raman' | 'krishnamurti' | 'kp' | 'yukteshwar' | 'jn-bhasin' | 'true-citra' | 'djwhal-khul': Sidereal school by name. Lahiri when omitted. Equivalent to ayanamsaId; send either.
    - `cosmogram` boolean
  - `chart2` object, required: Bride (counted from).
    - `date` string, required
    - `time` string, required
    - `timezoneOffset` number, nullable: Hours from UTC at the given moment, not minutes. Fractional zones are hours too: 5.5 for India, 5.75 for Nepal, -3.5 for Newfoundland. Defaults to 0, meaning UTC. Ignored when timezone is sent.
    - `timezone` string: IANA zone name such as Europe/Kyiv, or auto to look the zone up from latitude and longitude. The server takes the offset that zone kept at this local date and time, summer time included, and uses it in place of timezoneOffset. A clock time that happened twice takes the first occurrence; one skipped when clocks went forward takes the offset from before the change. Abbreviations such as EST are refused. Before 1970 the tz database is not reliable for every place, so send timezoneOffset when the local clock is known.
    - `latitude` number, required
    - `longitude` number, required
    - `houseSystem` 'P' | 'K' | 'R' | 'C' | 'E' | 'W' | 'B' | 'M' | 'O' | 'A' | 'T' | 'V' | 'D' | 'F' | 'G' | 'H' | 'I' | 'i' | 'L' | 'N' | 'Q' | 'S' | 'U' | 'X' | 'Y'
    - `name` string
    - `city` string
    - `zodiacType` 'tropical' | 'sidereal'
    - `ayanamsaId` number, nullable
    - `ayanamsa` 'fagan-bradley' | 'lahiri' | 'de-luce' | 'raman' | 'krishnamurti' | 'kp' | 'yukteshwar' | 'jn-bhasin' | 'true-citra' | 'djwhal-khul': Sidereal school by name. Lahiri when omitted. Equivalent to ayanamsaId; send either.
    - `cosmogram` boolean
  - `school` 'tamil' | 'kerala': Porutham school. tamil (default) or kerala; they differ on Dinam, Stree Deergham, Rasi and on which factors are essential.

## Response `200`

Successful calculation

- object
  - `ok` boolean
  - `data` object
    - `method` string, nullable
    - `school` string, nullable
    - `factors` object[], nullable
      - `factor` string, nullable
      - `verdict` string, nullable
      - `pass` boolean, nullable
      - `score` number, nullable
      - `rule` string, nullable
      - `source` string, nullable
      - `basis` string, nullable
      - `detail` object, nullable
        - `count` number, nullable
    - `passed` number, nullable
    - `score` number, nullable
    - `max` number, nullable
    - `essentialFailed` unknown[], nullable
      - unknown
    - `verdict` string, nullable
    - `verdictRule` string, nullable

## Other responses

- `400`: Validation error
- `401`: Missing or invalid API key

## Changes

- **2026-11-07** `e45dc317711a`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/astroway/apis/astroway-calculation-api/changes/vedic/compatibility/porutham/post.md)

---

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