tasyāḥ - her; anudinam - day after day; garbhaḥ - embryo; śukla-pakṣe - during the fortnight of the waxing moon; iva - like; uḍupaḥ - the moon; vavṛdhe - gradually developed; śūrasena-īśa - of the King of Śūrasena; tejasā - by the semen; śanakaiḥ - little by little; nṛpa - O King Parīkṣit.

After receiving semen from Mahārāja Citraketu, the King of Śūrasena, Queen Kṛtadyuti gradually developed in her pregnancy, O King Parīkṣit, just as the moon develops during the bright fortnight.