saḥ - that; rāja-putraḥ - the royal prince; vavṛdhe - grew up; āśu - very soon; śukle - waxing moon; iva - like; uḍupaḥ - the moon; āpūryamāṇaḥ - luxuriantly; pitṛbhiḥ - by the parental guardians; kāṣṭhābhiḥ - plenary development; iva - like; saḥ - he; anvaham - day after day.

As the moon, in its waxing fortnight, develops day after day, so the royal prince [Parīkṣit] very soon developed luxuriantly under the care and full facilities of his guardian grandfathers.