Śrī Caitanya Caritamrta · Text Madhya 15.17
কৃষ্ণজন্মযাত্রা-দিনে নন্দ-মহোত্সব ।
গোপবেশ হৈলা প্রভু লঞা ভক্ত সব ॥ ১৭ ॥
kṛṣṇa-janma-yātrā-dine nanda-mahotsava
gopa-veśa hailā prabhu lañā bhakta saba
The devotees celebrated the festival of Janmāṣṭamī, Kṛṣṇa’s birthday, which is also called Nanda-mahotsava, the festival of Nanda Mahārāja. At that time Śrī Caitanya Mahāprabhu and His devotees dressed themselves as cowherd boys.
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