yena - by the same thunderbolt; me - by me; pūrvam - formerly; adrīṇām - of the mountains; pakṣa-cchedaḥ - the cutting of the wings; prajā-atyaye - when there was killing of the people in general; kṛtaḥ - was done; niviśatām - of those mountains which entered; bhāraiḥ - by the great weight; patattraiḥ - by wings; patatām - falling; bhuvi - on the ground.

Indra thought: Formerly, when many mountains flying in the sky with wings would fall to the ground and kill people, I cut their wings with this same thunderbolt.