On day 7th, many interesting duel battles were being fought . Both sides had set back but Arjun destroyed Tigarthas army with his Aindra devine weapon.
And all Pandavas together could not defeat Grand Sire Bheesm! This was very clear that he is invincible.
It was a tiring day! King Virat lost his son Sanga. At the end of the day, Music was the only thing that could keep them sane.