Valmiki Ramayana Bala Kanda Sarga 71 Shloka 5
Original Shlokaउदावसोस्तु धर्मात्मा जातो वै नन्दिवर्धन:। नन्दिवर्धनपुत्रस्तु सुकेतुर्नाम नामत:।।1.71.5।।
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उदावसो: तु for that Udavasu, धर्मात्मा righteous, नन्दिवर्धन: Nandivardha, जात: was born, नन्दिवर्धनपुत्र: तु the son of Nandivardhana, नामत: by name, सुकेतुर्नाम named Suketu.
Virtuous Nandivardhana was the son of Udavasu whose son was Suketu.