
Namakarana (नामकरण, {IAST|Nāmakaraṇa}) (literally, naming) is the naming ceremony in Hinduism and the fifth of the 16 saṃskāras (sacraments) performed by the Hindus to name the child. According to the Grhya Sutras, it should be performed on the tenth or the twelfth day after birth. But opinions of the later authorities range from...
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http://en.wikipedia.org/wiki/Namakarana

the name-giving ceremony performed shortly after birth.
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https://iskconeducationalservices.org/HoH/extras/02glossary.htm
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