Valmiki Ramayana Ayodhya Kanda Sarga 118 Shloka 53
Original Shlokaमम चैवानुजा साध्वी ऊर्मिला प्रियदर्शना। भार्यार्थे लक्ष्मणस्यापि दत्ता पित्रा मम स्वयम्।।2.118.53।।
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मम my, अनुजा younger sister, साध्वी chaste, प्रियदर्शना pleasing appearance, ऊर्मिला Urmila, भार्यार्थे as wife, मम पित्रा by my father, स्वयम् of his own accord, लक्ष्मणस्यापि for Lakshman, दत्ता was given.
My father, on his own accord, bestowed Urmila, my younger sister of chaste and of pleasing appearance as wife to Lakshmana.