Valmiki Ramayana Yuddha Kanda Sarga 22 Shloka 72
Original Shlokaसनलेनकृतस्सेतुस्सागरेमकरालये । शुशुभेसुभगश्रशीमान् स्वातीपथइवाम्बरे ।।6.22.72।।
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मकरालये abode crocodiles, सागरे in the sea, नलेन by Nala, कृतः built, सुभगः auspicious, श्रीमान् glorious, सः that, सेतुः bridge, अम्बरे sky, स्वातीपथइव like the street of stars, शुशुभे looked.
The bridge was built on the sea, an abode of crocodiles, was auspicious, glorious, and looked like the street in space (milky path).