Valmiki Ramayana Ayodhya Kanda Sarga 80 Shloka 12
Original Shlokaनिर्जलेषु च देशेषु खानयामासुरुत्तमान्। उदपानान्बहुविधान्वेदिकापरिमण्डितान्।।2.80.12।।
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निर्जलेषु where there was no water, देशेषु in places, उत्तमान् best, बहुविधान् various, वेदिकापरिमण्डितान् surrounded by circular dykes, उदपानान् drinking water wells, खानयामासुः were dug.
In arid places, various good drinkingwaterwells surrounded by dykes were dug.