pratipujya vacas tesam
vyasah uvaca—Vyasa said; iti—thus; samprasna—perfect inquiries; samhrstah—perfectly satisfied; vipranam—of the sages there; raumaharsanih—the son of Romaharsana, namely Ugrasrava; pratipujya—after thanking them; vacah—words; tesam—their; pravaktum—to reply to them; upacakrame—attempted.
Ugrasrava [Suta Gosvami], the son of Romaharsana, being fully satisfied by the perfect questions of the brahmanas, thanked them and thus attempted to reply.
The sages of Naimisaranya asked Suta Gosvami six questions, and so he is answering them one by one.
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