The boy says - An old lady came in his dream and told him: go into this cave..you will find a temple there; clean it, and start regular worships there. Next day, he goes with his mother to the cave described by the dream lady and really finds a temple in there. To their surpise, there were idols of Hindu gods like Ganesha and Krishna lying around.
The man says - They have scriptures that mentioned about a temple there in around 4th or 5th century.