Valmiki Ramayana Kishkindha Kanda Sarga 42 Shloka 31
Original Shlokaतत्र प्राग्ज्योतिषं नाम जातरूपमयं पुरम्। यस्मिन्वसति दुष्टात्मा नरको नाम दानवः।।4.42.31।।
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तत्र there, पाग्ज्योतिषं नाम named Pragjyotisha, जातरूपमयम् full of gold, पुरम् city, यस्मिन् in it, दुष्टात्मा evilminded, नरको नाम named Naraka, दानवः demon, वसति dwells
'On the (Varaha) mountain is the city called Pragjyotisha, which is full of gold.There lives the evilminded demon Naraka.