The first chapter of the Bhagavad Gita - Arjuna Vishada Yoga introduces the setup, the setting, the characters and the circumstances that led to the epic battle of Mahabharata, fought between the Pandavas and the Kauravas. It outlines the reasons that led to the revelation of the of Bhagavad Gita. As both armies stand ready for the battle, the mighty warrior Arjuna, on observing the warriors on both sides becomes increasingly sad and depressed due to the fear of losing his relatives and friends and the consequent sins attributed to killing his own relatives. So, he surrenders to Lord Krishna, seeking a solution. Thus, follows the wisdom of the Bhagavad Gita.
Just immediately after that conchs and kettledrums, and tabors, trumpets and cow-horns blared forth. That sound became tumultuous.OPEN VERSE
Then, Madhava (Krishna) and the son of Pandu (Arjuna), stationed in their magnificent chariot with white horses attached to it, loudly blew their divine conchs.OPEN VERSE
Hrsikesa (Krishna) blew the conch Pancajanya; Dhananjaya (Arjuna) (the conch) Devadatta; and Vrkodara (Bhima) of terrible deeds blew the great conch Paundra;OPEN VERSE
King Yudhisthira, son of Kunti, (blew) the Anantavijaya; Nakula and Sahadeva, the Sughosa and the Manipuspaka (respectively).OPEN VERSE
And the King of Kasi, wielding a great bow, and the great chariot-rider Sikhandi, Dhrstadyumna and Virata, and Satyaki the unconquered;OPEN VERSE