Limits / सीमाएँ. Births from 1 Jan 1956 in India only, time taken as Indian Standard Time (UTC+5:30), the offset the IANA time zone database records for India from 15 Oct 1945 onwards (it lists no daylight-saving period after 1945). Earlier births are not supported: India used war time in 1942-45 and Calcutta and Bombay kept their own local times until 1948 and 1955. Exact birth time is needed: Lagna changes about every 2 hours. Place coordinates are for the city centre. Lahiri ayanamsa, whole-sign houses, mean Rahu. Other software may differ slightly near a sign or nakshatra boundary, or use true Rahu. Dasha dates use a 365.25-day year and can differ by a day or two from other software. This is a calculation aid, not a prediction.
Planet positions: Astronomy Engine by Don Cross, MIT licence (github.com/cosinekitty/astronomy).