Laghu-mānasa (c. 932 CE) is a Sanskrit-language text on astronomy by the Indian astronomer Mañjula. It is a karana text containing simple rules for astronomical calculations, aimed at panchanga-makers. It remained highly popular across a vast region of present-day India for several years: the first pre-modern commentary on it was written in Kashmir in 958, and the last one was written in 1732 in Kerala. Source: Wikipedia (en)