Tirumala Temple at Tirupati is the world's most-visited religious site, dedicated to Lord Venkateshwara (a form of Vishnu). The temple's wealth from donations over centuries makes it one of India's richest institutions. It is NOT associated with Lord Mahavir (Jainism), Lord Rama (Ayodhya), or Lord Shiva (though Shiva has other major temples in Andhra).