SB 6.7.18
tac chrutvaivasurah sarva
asrityausanasam matam
devan pratyudyamam cakrur
durmada atatayinah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Hearing of the pitiable condition of King Indra, the demons, following the instructions of their guru, Sukracarya, equipped themselves with weapons and declared war against the demigods.