Jahanara's final years are mysterious. She did leave the royal palaces and lived in her father's city of Delhi for the rest of her life.
Jahanara had her tomb built during her lifetime! Unlike the giant mausoleums built for her parents, she chooses to rests in a simple marble tomb open to the sky, it is not decorated like the graves of Mughal era.
She passed away on September 6th, 1681 at the age of 67 and buried near in the Hazrat Nizamuddin Dargah, Delhi.