एवमर्धतृतीयानामब्दानामधिमासकम् ॥ कZ_०२.२०.६६अब् ॥
evam ardha-tṛtīyānām abdānām adhimāsakam
In this manner, for years accumulating by halves and thirds, an intercalary month (adhimāsa) is to be applied.
Without it, lunar months drift against seasons, disrupting agriculture-linked revenue, contract dates, and state logistics tied to seasonal realities.