Hindu, Buddhist, Islamic, Jain, and Sikh religious architectures developed unique styles in India that incorporated local traditions. Hindu temple design follows a geometric pattern called vastu-purusha-mandala centered around beliefs and principles. Buddhist structures included monasteries (viharas), places for relics (stupas), and prayer halls (chaityas or temples). Islamic architecture blended Hindu styles with Persian influences, seen in tombs like the Taj Mahal. Jain temples vary between North and South India and include carved pillars and deity idols. Sikh architecture features open, spacious designs like the Golden Temple, with entrances from all sides.