ततः then, रावणस्य Ravana's, रथम् chariot, अपसव्यम् turned, कुर्वन् done, चक्रसम्भूतरजसा dust arising out of rolling wheels, रावणम् Ravana, व्यवधूनयन् shaken

Then Matali made the chariot turn round and by the dust rising from the rolling wheels of the chariot, Ravana was shaken.