वानरः Vanara, समुत्पत्य reaching near, तम् him, कुम्भकर्णाय Kumbhakarna, चिक्षेप struck, महाकायम् of huge body, तम् him, अप्राप्य missing the target, तधा like that, तस्य his, सैन्ये army, अपतत् fell on.

Vanara (Dwivida) going near Kumbhakarna struck him with the mountain. He missed the target and it fell on his army.