ततः then, क्रुद्धः enraged, राक्षसेश्वरः Rakshasa king, रावणोऽपि Ravana also, रणे in the battle, रामम् Rama, गदामुसलवर्षेण with mace and mallets, प्रत्यर्थयत् in return

Enraged Ravana, the king of Rakshasas, also in return, retaliated with maces and mallets.