All Sevas

अष्टम्यां भाद्रमासस्य कृष्णस्यापि तिथौ मुने ।
स्नात्वा सम्पूज्य देवेशं लभते मन्वन्तरं फलम् ॥

— Brahma-vaivarta Purana —

“On the eighth tithi of the dark fortnight of the month of Bhādra, after bathing and worshiping the Lord of the gods, one attains the fruit of worship performed for a manvantara.”