Well, Shah jahan's karmas did pursue him. His son Aurangzeb dethroned and imprisoned him. He also killed his elder brother Dara shikoh who was Shahjahan's favourite son. So Shahjahan spent his last days in imprisonment looking forlornly at the Taj. He had already lost his beloved wife for whom he has said to have built the Taj.Thanks Namrata ji.
I love the story of the Taj Mahal but I hat the King for cutting off the architect's hands.He truly deserves punishment for that.