Consider the following statements about Shah Jahan.
1. Shah Jahan succeeded to the throne on the death of his father in 1628.
2. He appointed his son, Prince Aurangzeb as the Viceroy of the Deccan.
3. Shah Jahan had trouble with the Portuguese who had a settlement at Calicut.
4. Shah Jahan is known for the tomb of Mumtaz Mahal.
Which of the statements given is/are correct?