Karnasubarna (Bengali: কর্ণসুবর্ণ meaning 'Made beautiful by Karna') was the capital of Shashanka, the first important king of ancient Bengal who ruled in the 7th century. After Shashanka's death it was the jayaskandhavara (camp of victory) of Bhaskaravarman, the king of Kamarupa probably for a short period. This is evident from his Nidhanpur copper-plate grant. In the mid-7th century, it was the capital of Jayanaga according to his Vappa Ghoshavata copper-plate grant.