tat - this; śrutvā - hearing; bhagavān rudraḥ - Lord Rudra; durmanāḥ - displeased; iva - as if; bhārata - O descendant of Bharata; oṁ iti - vibrating the sacred syllable oṁ as a sign of assent; prahasan - smiling broadly; tasmai - to him; dade - he gave it; aheḥ - to a snake; amṛtam - nectar; yathā - as.

Upon hearing this, Lord Rudra seemed somewhat disturbed. Nonetheless, O descendant of Bharata, he vibrated om to signify his assent, granting Vṛka the benediction with an ironic smile, as if giving milk to a poisonous snake.