Lord Venkateswara is Vishnu as he stands on the seventh of the Tirumala hills above Tirupati, in Andhra Pradesh. Most of North India calls him Balaji; the south says Srinivasa, Govinda or simply the Lord of the Seven Hills. More than sixty thousand people come to his temple on an ordinary day, and almost everything about his worship, from shaven heads to the overflowing donation boxes, grows out of one story about a wedding loan.
He borrowed from Kubera, the god of wealth, to marry Padmavati, and is still paying the interest, which is why pilgrims' offerings are said to help him repay it. Pilgrims shave their heads as an offering.
The story of the wedding loan
The temple's own account draws its legend from the Venkatachala Mahatmya and the Varaha Purana, among other Puranas. In it, the sage Bhrigu kicks Vishnu in the chest, the very place where Lakshmi lives, and Vishnu answers by apologising to him. Offended, Lakshmi leaves Vaikuntha, Vishnu's heaven. Vishnu follows her to earth, sits in an anthill under a tamarind tree on Venkata hill and is raised as Srinivasa by Vakula Devi, held to be Yashoda, Krishna's foster mother, born again.
Out hunting, Srinivasa meets Padmavati, daughter of King Akasha Raja, and the two are to marry. To pay for a wedding worthy of the gods he borrows a vast sum from Kubera, the treasurer of the gods. Devotees hold that he is still paying the interest, and that the money they drop into the temple hundi (donation box) helps him repay it. After the wedding, the story goes, he stayed on the hill as the image that stands there now.
How he is worshipped
At Tirumala the darshan, the sight of the deity, lasts a few seconds, and the queue that leads to it is treated as the pilgrimage itself rather than an obstacle. Free darshan is open to everyone and can take most of a day; paid slots are booked weeks or months ahead. Phones go into lockers, the dress code is checked at the gate, and black clothes are best left behind: in Dravidian tradition black is the colour of mourning.
Many pilgrims offer their hair. Whole families, children included, come out of the tonsure halls shaven, and over a ton of hair is collected every day. Everyone leaves with the Tirupati laddu, the temple's sweet prasad (food offered to the deity and shared out).
By custom, pilgrims first visit Padmavati at Tiruchanur, below the hill, and only then climb to her husband: darshan at the husband's shrine without the wife's is considered incomplete. The short mantra is Om namo Venkateshaya, "homage to Venkatesha"; on the hill the greeting you hear everywhere is "Govinda, Govinda".