लघुपराक्रमः extraordinary valiance,, सः, रावणस्य that Ravana 's, ताम् them, आज्ञाम् order, परिगृह्य taking hold, तदा then, बलम् army, म्प्रेरयामास dispatched.

Then accepting Ravana's order, accordingly, taking hold of the army dispatched them.