 Kumara Padmarasa, son of Kereya Padmarasa, wrote the "Sananda Charitre" in "shatpadi" metre.Ratta Kavi, a Jain noble, wrote a quasi-scientific piece called "Rattasutra" (or "Rattamala") in 1300.The writing bears on natural phenomena such rain, earthquakes, lightning, planets and omens.