saḥ - he (King Indra); tu - however; vṛtrasya - of Vṛtrāsura; parigham - the iron club; karam - his hand; ca - and; karabha-upamam - as strong as the trunk of an elephant; ciccheda - cut to pieces; yugapat - simultaneously; devaḥ - Lord Indra; vajreṇa - with the thunderbolt; śata-parvaṇā - having one hundred joints.

With his thunderbolt named Śataparvan, Indra simultaneously cut to pieces Vṛtrāsura’s club and his remaining hand.