Valmiki Ramayana Kishkindha Kanda Sarga 39 Shloka 25
Original Shlokaमैन्दश्च द्विविदश्चोभावश्विपुत्रौ महाबलौ। कोटिकोटिसहस्रेण वानराणामदृश्यताम्।।4.39.25।।
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महाबलौ two very powerful, अश्विपुत्रौ two sons of Asvi, मैन्दश्च Mainda, द्विविदश्च Dvivida, उभौ both, वानराणाम् vanaras, कोटिकोटिसहस्रेण by a thousand crores, अदृश्यताम् appeared.
Two very powerful sons of Asvini, Mainda and Dvivida, appeared with a thousand crore vanaras.