There are two Rama Gitas one is a dialogue between Hanuman and Sri Ram in Jnana Vasishtha-Tattva Sarayana. Another Rama Gita is the dialogue between Rama and Lakshmana in the Chapter V uttara khanda of Adhyatma Ramayana.
The dialogue between Hanuman and Sri Ram in Jnana Vasishtha-Tattva Sarayana focuses on jnana, bhakti, vairagya and yoga from the standpoint of Advaita (monistic philosophy).
It advocates the acquirement of right knowledge, and not retirement to the forest for penance.
It asserts that the realization of Brahman consciousness would lead one to jivanmukti (liberation whole being alive) and then to videha mukti (emancipation at death).
The text deals mainly on jnana (knowledge), spiritual practice (upasana) and actions (karma).
Jnana Vasishtha Tattva Sarayana is more popular in South India especially in Tamil Nadu.