na tasya hi tvacam api vajra ūrjito bibheda yaḥ sura-patinaujaseritaḥ tad adbhutaṁ param ativīrya-vṛtra-bhit tiraskṛto namuci-śirodhara-tvacā
WORD BY WORD
TRANSLATION
Although King Indra hurled his thunderbolt at Namuci with great force, it could not even pierce his skin. It is very wonderful that the famed thunderbolt that had pierced the body of Vṛtrāsura could not even slightly injure the skin of Namuci’s neck.
PURPORT
This verse has not purport by His Divine Grace A.C. Bhaktivedanta Svāmi Prabhupāda.