वैशाखस्य तृतीयायां नवमी कार्त्तिकस्य च पञ्चदशी च माघस्य नभस्ये च त्रयोदशी //
vaiśākhasya tṛtīyāyāṃ navamī kārttikasya ca pañcadaśī ca māghasya nabhasye ca trayodaśī //
वैशाखस्य तृतीयायां नवमी कार्त्तिकस्य च । पञ्चदशी च माघस्य नभस्ये च त्रयोदशी ॥
This verse is not about pralaya; it focuses on dharmic timekeeping—identifying particularly auspicious lunar dates for religious observance.
It guides householders (and rulers setting public religious calendars) to prioritize specific tithis for vrata, worship, charity, and merit-making acts—central to maintaining dharma in society.
Ritually, it is a tithi-list used to select high-merit days for pūjā, dāna, japa, and temple services; it does not give direct Vāstu or temple-construction measurements but supports temple ritual scheduling.