Question: Who is the paternal grandfather of Mihr-Un-Nissa Begum?
Answer: Shah Jahan

Aurangzeb was noted for his religious piety; he memorized the entire Quran, studied hadiths and stringently observed the rituals of Islam. Unlike his predecessors, including his father Shah Jahan, Aurangzeb considered the royal treasury to be held in trust for the citizens of his empire. He did not enjoy a luxurious life and his personal expenses and constructions of small mosques were covered by his own earnings, which included the sewing of caps and trade of his written copies of the Quran