The 4th chapter of the Srimad Bhagavadgita has been uploaded at the mantras page. It is available in the Kannada, Devanagari and English scripts.
In this chapter, Lord Krishna once again explains to the Arjuna the need for renouncing the fruits of action. He also explains Karma, Akarma and Vikarma. He also details the various types of yajnas people perform in the world and the importance and position of knowledge in attaining Him.