Valmiki Ramayana Aranya Kanda Sarga 35 Shloka 34
Original Shlokaस तेनैव प्रहर्षेण द्विगुणीकृतविक्रमः। अमृतानयनार्थं वै चकार मतिमान्मतिम्।।3.35.34।।
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मतिमान् wise, सः he (Garuda), तेनैव प्रहर्षेण out of that joy, द्विगुणीकृतविक्रमः with redoubled vigour, अमृतानयनार्थम् to obtain nectar, मतिम् चकार made up his mind.
Quite happy, his energy redoubled, wise Garuda made up his mind to obtain nectar.