This manuscript preserves a Sanskrit recension of the *Kālacakratantra*, a seminal text of Buddhist esotericism that integrates cosmology, astrology, and soteriology within a tantric framework. The opening verses present a distinctive invocation to the Kālacakra deity—characterized as omniscient, sun-bodied, and lotus-eyed—followed by Sucandra's propitiatory request for teachings on the wheel of time (*kālacakra*) as a means to liberation during the Kali Yuga. The text exhibits sophisticated numerological and spatial symbolism, delineating intricate correspondences between macrocosmic structures (mountains, oceans, continents) and the microcosm of the yogic body, including detailed measurements in *yojana*s and the mapping of celestial bodies onto anatomical sites. Notable features include the presence of red-ink interlinear corrections (e.g., śukrau), the use of Newari script, and the systematic exposition of the six-line (*ṣaḍaṅga*) yoga system, reflecting the tantra's unique synthesis of Indian astronomical sciences (*jyotiṣa*) with Mahāyāna Buddhist soteriology.
