KBC 2021| Who was the brother-in-law of the Indian emperor Harshavardhan?

KBC 2021, Find out the correct answer of the question- Who was the brother-in-law of the Indian emperor Harshavardhan?

•Grahavarmana

•Banabetta

•Devagupta

•Bhaskaravarman

Correct answer is Grahavarmana