Once Jehangir visited a temple in Agra. He took his grandsons Dara Sikoh and Aurangzeb along for the visit. While Dara had no issues visiting the temple with their grandfather, Aurangzeb a young kid at that time refused to enter the temple saying it will make him a Khafir “non believer” and its blasphemy for him to enter a temple. Jehangir tried to convince the kid Aurangzeb to come inside the temple but Aurangzeb simply refused and Jehangir left Aurangzeb outside and went inside with his other grand kid to offer prayers. Jehangir had puja offered and than went outside and Aurangzeb was waiting for him.
Jehangir was so angry at aurangzebs attitude during temple visit that he came back and called Shah jahan, his son and complained about aurangzebs behaviour in temple. But Aurangzeb never changed his attitude and remained defiant and disliked anything to do with hindu or any other religion. Shah Jahan himself was an orthodox muslim from a young age. That was more to do with his being adopted and brought up by Ruqaiah Begum, Akbars first wife than his own parents Jodha Bai and Prince Salim. Akbar had handed over Prince Khurram aka Shah jahan to Ruqqaiah for upbringing as a 4 days old baby. Only later on in his life in his mid 40s did Shah Jahan become liberal and allowed Diwali and Holi celebrations in Delhi fort. The change occurred because Dara Sukoh showed inclination towards Hinduism and Sufism and even Sikhism. And Shah Jahan’s favourite son was Dara Sukoh, so father just had to become more liberal to accomdate his loving sons interest in Hindu religion and Sufism. Otherwise for most of his life even Shah Jahan remained orthodox muslim rather than a follower of many religions like his father Jehangir or grandfather Akbar.
Jehangir was born to a Rajputh Princess Hira Kunwari. Although he practiced Islam and to some extent Din e Illahi his fathers Akbars religion, he had no issues in participating in various other religious practices or going to their temples. The British felt he was an aethist because he had Jesus and Mary pictures in his bedroom and also had Persian version of Bhagvad Gita in his bed room. Thomas Roe felt he was an muslim when required and hindu other times. Willam Finch wote that he was a Christian sometimes. Some felt he was a Jain other times because he loved to hold discussions with Jadrup Gosain the jain muni in his ant mound(in forest). Jehangir celebrated holi, diwali, raksha bandhan and duseerha in agra fort. He also celebrated Christmas and Easter with Christians in court and visited churches in Delh, Lahore and agra. He celebrated the Parsee festival of nauroz with fervour in his palace. He was multi religious in celebrating various religious functions in his palace. Indeed he was so impressed with Jainism as a religion that he converted to Jainism and called himself jagat guru and his chief consort Jodha Bai as Jagat Gosain. Although converting to Jainism did not stop him from following Islam and hindu rituals and celebrating various religion festivities. Basically all the ambassadors of other countries and his courters were confused which religion he practiced or belonged to.