The temple inauguration marks the culmination of a decades-long dispute over a site Hindus believe is the birthplace of the god Ram. Critics call the temple a monument to India's eroding secularism.
Prime Minister Narendra Modi will help consecrate the unfinished temple on Monday, on the site of a 16th century mosque destroyed in 1992. Critics say the rushed ceremony is a political stunt.
The 1992 destruction of the Babri mosque in Ayodhya by Hindu extremists sparked riots that killed thousands of Muslims, leaving a deep rift between the country's religious communities.