Akbar's quest for religious knowledge and his interest in fostering religious tolerance and understanding among various faiths led to the establishment of the "Ibadat Khana" or "House of Worship" in Fatehpur Sikri (Agra). The Ibadat Khana served as a platform for inter-faith debates and discussions where scholars and religious leaders from different traditions, including Islam, Hinduism, Christianity, and Zoroastrianism, would come together to exchange ideas and engage in dialogue.

The location at Fatehpur Sikri was chosen by Akbar because of its significance as his new capital. The debates held at the Ibadat Khana were a part of his broader policies of religious tolerance and integration, and they played a crucial role in shaping Akbar's religious views and policies during his reign.

So, the correct option is [3].