With the resounding of the conch shells, the Mahabharata war began. Soldiers armed with different weapons ran towards each other. Bhishma attacked the army with such might that the Pandavas soldiers shuddered out of fear. Abhimanyu, the son of Arjuna and Shuvadra, was given the responsibility of facing Bhisma. He showered a volley of arrows on him. In retaliation, the Kaurava warriors surrounded Abhimanyu from all side. But brave Abhimanyu fought  with unflinching courage. Other Pandava warriors came to help him and the Kaurvas had to step back. The first day ended with a lot of casualties on both sides. But the Pandava army suffered major setbacks due to the death of Utar and Shweta, the two princes of Viratnagar. But both the warriors fell fighting after killing hundreds of Kaurava soldiers.