The cow belonged to a person of the "Kachhi", (the people of this caste generally used to grow vegetables).
Next morning, King called his boys and dug out the place and found a statue of the sun.
He built a temple in Unao and established the statue on a brick platform, and as said by the sun, the owner of that cow has been assigned the priest.
Since then only people belonging to "Kachhi" caste can only sit at the brick platform and offer garlands, prasadas to the deity.
Sulphur content is found in the water of Pahooj river, which is helpful in treating skin diseases.
It is said that if you have bathe in river and offer water to deity Balaji, all your incurable skin ailments will be cured within few days.
All the inhabitants of Unao and the surrounding region has enormous faith in the deity and also have felt the power of it.