The voices of the five brothers resonate, and Yudhisthira's position is revealed.

Yudhisthira's Anantavijaya, Nakula's Sugosha, and Sahadeva's Manipushpaka. Following the previous section featuring Arjuna and Bhima, three more conch shells are blown, completing the sound of the five Pandava brothers.

It is important to note that Yudhisthira is referred to as "son of Kunti" and simultaneously as "king." While indicating that the mother of the five brothers is not the same, the title of king is given to him during a time when he had lost his kingdom. This designation implies both his former status as an emperor and the expectation that he will regain sovereignty.

Japanese Translation from the Gita Press Edition - Chapter 1, Section 16: "Yudhisthira, Nakula, and Sahadeva"

King Yudhisthira, the son of Kunti, and Anantavijaya. Nakula, Sahadeva, Sughosha, and Manipushpaka. || 16 ||

Translation

The king Yudhisthira, who was Kunti's son, blew a conch shell named Anantavijaya.

Again, Nakula and Sahadeva blew conch shells named Sugosha and Manipushpaka, respectively.

Annotative Translation

Of Pandu's five sons, Yudhisthira, Bhima, and Arjuna were born to his first wife, Kunti.

Nakula and Sahadeva were born to Madri, who was the second wife.

In this section, the names Nakra and Sahadeva also appear.

Therefore, in this passage, Yudhisthira is referred to as "the son of Kunti" in order to indicate that Yudhisthira, Nakula, and Sahadeva are not all children of the same mother.

At the time of the war, Yudhisthira did not have a kingdom. However, at the Rajasuya ceremony, he conquered all the kings and became an emperor.

Furthermore, Sanjaya believed that he would regain sovereignty again after the war.

At the time when Sanjaya spoke these words, Yudhisthira's body still possessed all the marks of a king.

These are the reasons why Sanjaya added the title "King" to Yudhisthira's name.