After some time, sage Vishwamitra came to the palace and demanded the princes Rama and Lakshmana with King Dasharatha for the protection of the Yajna at his ashram.

According to historians, Rama was not only brought to protect the Yajna, but they were also taught many lessons in weapons besides the Vedas in the gurukula of Maharishi Vishvamitra.

It is said that after the completion of Yajnas at the Ashram, Vishwamitra was invited by King Shreedhwaja Janaka of the Mithila Kingdom to participate in Sita Swayamvar in his court.

It is said that in Bisaul village there was a royal mango garden, where King Janaka built an ashram for the residence of the sage Vishwamitra in Mithila.

[5] After resting at Bisual, Rama and Lakshmana with their teacher Vishwamitra went to court of King Janaka at Janakpur where Swayamvar Sabha for the purpose of marriage of princess Sita was organised.

The place where the altar and sacrificial pavilion (Yajna Mandap) decorated with gems was built for the marriage in Janakpur is near Rani Bazar known Manimandapa.