Adhyathmaramayanam Kilippattu is the Malayalam version of the Sanskrit Ramayana. Adhyathmaramayanam kilippattu was written by Thunchaththu Ramanujan Ezhuthachan in the early 17th century, and is considered to be a classic of Malayalam literature. Ezhuthachan used the Grantha based Malayalam script to write his Ramayana, although Vatteluttu writing system was the traditional writing system of Kerala then.
Tradition ascribes the authorship of Adhyathma Ramayana to Ved Vyasa since it is said to be an integral part of Brahmanda Purana. However, some scholars attribute it to the period 14th - 15th century CE and the author as unknown. Adhyathma Ramayana is the portrayal of a conversation between Lord Siva and Goddess Parvati (as reported by Lord Brahma to Sage Narada). It is this work that provided Tulasidas with the inspiration to compose his immortal work, the Ramacharitamanasa.
However, Adhyathmaramayanam Kilippattu is the malayalam translation of the original Sanskrit version by Ezhuthachan .
Traditionally, two ancient sources of Ramayana are Valmiki Ramayan and Ramavataram, popularly referred to as Kamba Ramayanam, is a Tamil epic that was written by the Tamil poet Kamban during the 12th century. Other versions of Ramayana are Vasishta Ramayana, Ananda Ramayana, Agasthya Ramayana in Sanskrit, Ranganatha Ramayana in Telugu, Tulasi Ramayana or Ramacharitamanasa in Hindi, Kirtivasa Ramayana in Bengali.