Hearing his accents faltering through grief, the leaders of monkey-herds, alarmed by his action*, did not repose confidence in his speech. Karmaņā (instru.) by his action. The commentator explains: alarmed by his speech about eating up the monkeys. The passage is
शोकाद् भ्रष्टस्वरमपि श्रुत्वा वानरयूथपाः। श्रद्दधुनैव तद्वाक्यं कर्मणा तस्य शङ्किताः॥