अङ्गदेन by Angada, ज्यास्वनेन च by the twang, समाख्यातः proclaimed by, वानरः monkeys, लक्ष्मणम् Lakshmana, प्राप्तम् who arrived, बुबुधे knew, अस्य his, मुखं च the mouth, अशुष्यत parched.

As proclaimed by Angada and also from the sound of the twang, Sugriva knew about the arrival of Lakshmana. His mouth parched (with fear).