Chapter 4 (Jñāna Yōga)
Ṭhis chapter deals with the investigation of the supreme wisdom. The concepts of Jñāna tapas, Jñāna yajña, Jñāna nauka, Jñāna agni, Jñāna khadga, and all which refer to knowledge and understanding of the Self are discussed. The importance of spiritual knowledge and the qualifications of the person of knowledge are elaborately stated. Some salient points of this chapter include: (a). The Lord’s power and the mention of niṣkāma karma, (b). The pure conduct of the Jñāni, (c). Various yajñas and the superiority of Jñāna yajña, and (d). The efficacy of Jñāna.
For ease of reference , here is the link to Bhagavad Gita Book in Telugu




