With reference to Hazara Rama temple situated in Hampi, consider the following statements:

1. It was built in the early 15th century by Krishna Devaraya.

2. Its walls have the Ramayana carved on stones and the outer walls have relics of Rama and Krishna.

3. The relics on the outer walls depict processions of horses, elephants, attendants, soldiers, and dancing women taking part in the Dasara festival rally.

4. Initially, it comprised of only a sanctum, a pillared hall, and an Ardha mandapa, however, later it was revamped for an open porch and pillars.

How many of the statements given above are correct?