O son of Radha, when Bhishma will be killed, you may come back and fight on Duryodhana's side, if you have no particular lcaning for any party.
हते तु भीष्मे राधेय पुनरेष्यसि संयुगम्। धार्तराष्ट्रस्य साहाय्यं यदि पश्यसि चेत् समम्॥