शीघ्रं frenzied, कुम्भकर्णात्मजः Kumbhakarna's son, आकाशम् space, छादयन्तीम् covering, दुरासदाम् difficult to approach, ताम् them, वृक्षवृष्टिम् shower of trees, निशितैः sharp, शरैः arrows, चिच्छेद torn asunder.

Frenzied Kumbhakarna's son was torn under the shower of trees that covered space with sharp arrows which was difficult to approach.