Shah Jahan was more radical in his thinking than his father and grandfather. Upon his accession, he adopted new policies which reversed Akbar's treatment of non-Muslims. In 1633, his sixth regnal year, Shah Jahan began to impose his interpretation of Sharia provisions against construction or repair of churches and temples and subsequently ordered the demolitions of newly built Hindu temples. He celebrated Islamic festivals with great pomp and grandeur and with an enthusiasm unfamiliar to his predecessors. Long-dormant royal interest in the Holy Cities was also revived during his reign.