Udyoga Parva
The Udyoga Parva (Sanskrit: उद्योग पर्वः) ("Book of Effort") is the fifth of the eighteen parvas (books) of the Indian epic Mahabharata. Udyoga Parva traditionally has 10 parts and 199 chapters. The critical edition of Sabha Parva has 12 parts and 197 chapters.
Udyoga Parva describes the period immediately after the exile of Pandavas had ended. The Pandavas return, demand their half of the kingdom. The Kauravas refuse. The book includes the effort for peace that fails, followed by the effort to prepare for the great war—the Kurukshetra War.
Vidura Niti, a theory of leadership as propounded by Vidura, is embedded in Udyoga Parva (Chapters 33–40). The Sanatsujatiya, a text commented upon by Adi Shankara, is contained within the Udyoga Parva (Chapters 41–46).