The main theme of the 'yousaf bin tashfeen urdu novel' could be multifaceted. It may tell the story of Yousaf bin Tashfeen from a historical perspective, highlighting his role in a certain era. It could also be about the relationships he had, be it with his family, friends, or foes. Moreover, it might touch on the moral and ethical values of the society during that period, which are often explored in Urdu literary works.
Since I don't have in - depth knowledge of this particular novel, it might be centered around the character of Yousaf bin Tashfeen. It could explore his life journey, his struggles, and his achievements. It may also delve into the social and cultural context of the time in which he lived, which is a common theme in Urdu novels.