One verse

Srimad Bhagavatam 8.11.28

8.11.28

स तेनैवाष्टधारेण शिरसी बलपाकयो: । ज्ञातीनां पश्यतां राजञ्जहार जनयन्भयम् ॥ २८ ॥

sa tenaivasta-dharena sirasi bala-pakayoh jnatinam pasyatam rajan jahara janayan bhayam

sah
he (Indra)
tena
by that
eva
indeed
asta-dharena
by the thunderbolt
sirasi
the two heads
bala-pakayoh
of the two demons known as Bala and Paka
jnatinam pasyatam
while their relatives and soldiers were watching
rajan
O King
jahara
(Indra) cut off
janayan
creating
bhayam
fear (among them).

O King Pariksit, King Indra used his thunderbolt to cut off the heads of both Bala and Paka in the presence of all their relatives and followers. In this way he created a very fearful atmosphere on the battlefield.