Chara Karakas (Jaimini Significators)चर कारक
A Jaimini-system technique that assigns 7-8 special roles (Atmakaraka "soul significator," Amatyakaraka "career significator," Darakaraka "spouse significator," and others) to the planets in your chart, based purely on which planet has the highest degree within its sign — not on fixed planet-to-role assignments the way Western astrology might.
The Atmakaraka is considered the most important of all — the planet representing your soul's core desires and lessons this lifetime — and is the starting point for both the Karakamsha chart and Chara Dasha system.
This app uses 8 planets including Rahu. Planets are ranked by degree within their sign, highest to lowest. The top 7 get named roles: Atmakaraka, Amatyakaraka, Bhratrukaraka, Matrukaraka, Putrakaraka, Gnatikaraka, Darakaraka. Rahu uses reverse degree (30 − degree) since it moves retrograde.