Billeshwar Temple is an ancient temple with an interesting past of 500 years. Located at Belsor Village near Nalbari, the temple is devoted to Lord Krishna, although it is believed that a Shiva Linga was found on the same spot.
As per the legend, once a cow owned by the priest refused to be milked. The following day, the priest found out that the cow gave her milk to a bush of Virina. When the case came in the notice of the king, he made that place dug up and found a Shiva Linga there. A temple was established there by the name of Birreswar which later came to be known as Billeswar and now Belsor.