Some historians say the temple (Sabarimalai) represents the idol of Buddha, most of them believe it represents the union of Shiva and Vishnu. More than 4.5 crore pilgrims flock to this hill shrine for 60 days every year. “Sabarimalai temple of Lord Ayyappa, Kerala, is the most famous Hindu pilgrim centre in south India and is the second largest pilgrim gathering centre in the world after Mecca,’’ says a senior journalist Babu Krishnakala. The temple is at least 4000 to 4500 years old.