Bhishma Dhadmau Blows Shankam

According to Madhusudhana Bhishma wants to encourage Duryodhana. Once one conch is blown then all the other warriors are going to blow their conscious. So you can just imagine once the trend starts the trend of blowing the conch is started here by Bhishma. Sanjaya narrates all the noise and tumult on the battlefield. He does all this why Sanjana-yana causing the light, causing encouragement and Tassya for him for DuryodHana.