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POST/v1/astro/dasha

Vimshottari Dasha

Calculate the complete Vimshottari Dasha timeline for a birth chart. Returns Mahadasha, Antardasha, Pratyantar, Sookshma, and Prana periods up to 5 levels deep, with start and end dates for each. The starting planet is determined by the Moon's nakshatra at birth (Janma Nakshatra). The first Mahadasha row starts at birth and lasts the balance; its sub-periods are the remaining tail of the full Mahadasha, which began before birth, so the period running at birth is usually not the Mahadasha lord's own. That row also gives dasha_start_date and balance_years. Dates are DD/MM/YYYY. Interpretation text accompanies the currently active Mahadasha and Antardasha.

Request parameters​

locationoptional
string | null
City name to resolve to lat/lon/tz automatically. Example: 'Mumbai' or 'New Delhi, India'. If provided, latitude, longitude and timezone are not required.
nameoptional
string
Person name associated with the birth record
daterequired
string
Birth date in YYYY-MM-DD format
timeoptional
string | null
Birth time in HH:MM 24-hour format. If omitted, sunrise chart is used as fallback.
latitudeoptional
number | null
Latitude. Required if location not provided.
longitudeoptional
number | null
Longitude. Required if location not provided.
timezoneoptional
string | null
IANA timezone. Required if location not provided (unless utc_offset is given). For dates before the zone adopted a standard time, the birthplace's local mean time (longitude / 15 hours) is used.
utc_offsetoptional
string | null
Optional explicit UTC offset of the birth time, as ±HH:MM or ±HH:MM:SS (e.g. '+04:51:31' for Bombay mean time). Overrides the offset timezone would give. Use it when the birth record states the offset, or for historical local times the IANA database cannot represent.
ayanamsaoptional
string
Sidereal ayanamsa mode used in calculations
levelsoptional
integer
Depth of dasha hierarchy to compute (1 to 5)

Response fields​

success
boolean
True if the request succeeded
message
string
Human-readable status message
data
object
data.periods
array[object]
Calculated Vimshottari dasha hierarchy
data.periods[].planet
string
Dasha lord for this period
data.periods[].start_jd
number
Julian day at period start
data.periods[].end_jd
number
Julian day at period end
data.periods[].start_date
string
Period start, DD/MM/YYYY (UTC calendar date). The first Mahadasha row starts at birth.
data.periods[].end_date
string
Period end, DD/MM/YYYY (UTC calendar date)
data.periods[].sub
array[DashaPeriod] | null
Nested sub-periods for deeper hierarchy levels. Under the first Mahadasha these are the remaining tail of the full Mahadasha, which began before birth: periods that ended before birth are omitted and the one running at birth starts at birth.
data.periods[].dasha_start_date
string | null
Only on the first Mahadasha row: the date (DD/MM/YYYY, UTC) the full Mahadasha began, before birth. The row itself starts at birth and lasts the balance.
data.periods[].balance_years
number | null
Only on the first Mahadasha row: the balance of that Mahadasha remaining at birth, in years of 365.25636 days.
data.periods[].modern_summary
string | null
Optional modern interpretation summary for this period
data.interpretation
object | null
Structured dasha interpretation summary
data.birth_time_provided
boolean
Whether a precise birth time was provided. False when birth time was not supplied or treated as unknown — calculations using this field will have lagna-dependent accuracy limits.

Errors​

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