Day one of Kurushetra war started. Yudhishithir went and sought permission and blessings from his elders in Kauravas side to start the fight. He was given permission and blessings. Arjun was very pained to fight his own people and Krishna preached him Gita, one of the Most sacred literature where Krishna advises Arjun to do his duty without any emotions and without worrying about outcome.
