He invites Dasarattha at the behest of these sages.
Visva:mithra is a world renowned sage. Satha:nanda is the royal-adviser of King Janaka.
Undoubtedly, King Janaka has his own fame. However when inviting Dasarattha, Lord Ra:ma’s father, Janaka does not rely of self-eulogy. The invitation is not sent on his behalf! It is sent on the behalf of sage Visva:mithra, whom Dasarattha revered, and also on the behalf of Satha:nanda, Janaka’s royal priest. Such is the sensibility of King Janaka
On receiving the invitation, king Dasarattha is overjoyed! After a long time he had news of his sons. Also there is an invitation from king Janaka! The king summons Vasishtta, the royal preceptor and sages like Va:made:va. Along with them, he meets the council of ministers and based on their advice, accepts the invitation.
Such is the weight of sage Visva:mithra’s words!Janaka’s diplomacy is working!
Accompanied by Bharatha and Sathrughna, four-fold army and treasures, Dasarattha leaves for
Mitthila. Sages like Vaishtta, Va:made:va, Ja:ba:li, Ka:syapa, Ma:rkande:ya, Ka:thya:yana lead the procession. They travel for four days before reaching Janaka’s Mitthila. Janaka arrives with the sages residing in his state and receives Dasarattha warmly.
Janaka says in all humility, “Blessed I am! Blessed are my ancestry!! A yagna is under progress. Once the sacred rituals are concluded, we shall conduct the marriage. Such is the view of the sages” Dasarattha replies humbly, “O King ! You are the ‘giver’, I am the ‘taker’! You are well aware of the code of conduct. I shall abide by what you say!”
Janaka is courteous! Dasarattha is double courteous!! He is sensitive enough to recognise that the host’s convenience is a chief priority for a guest. Also it was practical enough on his part to proceed by Janaka’s schedule!
Both the parties exchange pleasantries, introduce themselves and rest for the night. Earlyin the morning, Janaka makes his daughters Si:tha and U:rmila perform various rituals. Then he calls Satha:nanda and says thus, “You know my brother Kusadhvaja ! He rules the city of Sa:nka:sya, on the banks of river Ikshumathi. In fact he is the protector of this Yagna! It would be good if he is available here, at least for the concluding ceremony. He would have his share of joy! I shall send for him, now.” Satha:nanada
Janaka seems to be so subtle! How is it that he remembers his brother at the far end of the yagna? He never invited his brother till date. Also Janaka says that his brother is the chief protector. Perhaps, Janaka posted him at the frontiers to protect the yagna! It might be true as well!! However, why does Janaka discuss with Satha:nanda to invite his brother?! He could have simply ordered! Why these discussions?