Kumbha is the eleventh rashi, the Vedic sign of the pot or water-bearer, corresponding to Aquarius. In classical jyotisha it is ruled by Saturn (Shani), which owns it as the day house of Saturn; the modern planet Uranus has no place in the traditional scheme. Its quality is fixed (sthira), and its element is air (vayu tattva). Jyotisha reads Kumbha through Saturn's detachment and the poured pot: collective concerns, endurance, systems, and the steady distribution of what the vessel holds. As a sidereal sign it is fixed to the stars and sits roughly 24 degrees behind tropical Aquarius. Saturn's classical rulership of the water-bearer is shared with pre-modern Western astrology. The eleventh-house themes of gains and networks accord with the tradition's reading of Kumbha as the sign of the wider community.
Kumbha names the water-pot itself rather than the figure who pours it, a narrower sense than the Greek hydrochoos it renders, which means precisely the water-pourer; the Sanskrit keeps the vessel and lets the bearer implicitly carry it, a small but consistent pattern in how these translations handle Greek agent-nouns. The transmission runs through the Yavanajataka, a versification of a Greek astrological text of roughly the second through fourth centuries CE, itself resting on the twelve equal signs Babylonian celestial divination had fixed by the fifth or fourth century BCE, a scheme with no precedent in the older Vedic corpus. Saturn's classical rulership of Kumbha, shared with pre-modern Western astrology before Uranus was added to the sign in the nineteenth century, belongs to a later classical layer credited to compilations such as the Brihat Parashara Hora Shastra of roughly the seventh or eighth century CE.
Sources Brihat Parashara Hora ShastraSage Parashara (attributed) with The Yavanajataka of SphujidhvajaDavid Pingree, Jyotihsastra: Astral and Mathematical LiteratureDavid Pingree