Pañcarātrika—the process of worshiping the Deity, as explained by Nārada Muni. Also, a five-day fast, as explained by Kauṇḍilya Ṛṣi.

Pancaratrika-the process of worshiping the Deity, as explained by Narada Muni. Also, a five-day fast, as explained by Kaunḍilya Rsi.
 

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