SB 8.11.29
namucis tad-vadham drstva
sokamarsa-rusanvitah
jighamsur indram nrpate
cakara paramodyamam
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
O King, when Namuci, another demon, saw the killing of both Bala and Paka, he was full of grief and lamentation. Thus he angrily made a great attempt to kill Indra.