Lahiri (Chitrapaksha) — Indian standard
Official Indian National Calendar standard. Calibrated to the vernal equinox of 285 CE; used by most classical and modern Jyotish practitioners.
Raman — B.V. Raman system
B.V. Raman's personal system, preferred within the Raman school. Runs approximately 1.5° earlier than Lahiri.
KP — Krishnamurti Paddhati
Krishnamurti Paddhati. Uses star-lord and sub-lord sub-divisions within each nakshatra for precise event timing.
Fagan-Bradley — western sidereal
Common western sidereal frame. Useful when you need to compare this kundali against non-Indian sidereal research or software.
True Chitra — star-anchored Spica frame
A Spica-anchored frame close to Lahiri and KP. Good for side-by-side comparison when you want a star-referenced Chitra baseline.
Yukteswar — yogic sidereal frame
Sri Yukteswar's lineage-specific frame. Use when matching readings from Yogananda or kriya-oriented chart traditions.