Matsya Purana — Yadu Lineage
महासुरा द्वादशसु संग्रामेषु सुरैर् हताः तैस्तैरुपायैर्भूयिष्ठं निहता वः प्रधानतः //
mahāsurā dvādaśasu saṃgrāmeṣu surair hatāḥ taistairupāyairbhūyiṣṭhaṃ nihatā vaḥ pradhānataḥ //
The mighty Asuras were slain by the Devas in twelve battles; and by those various stratagems, most of your leading chiefs were, above all, repeatedly destroyed.
This verse is not about Pralaya; it emphasizes the recurring restoration of cosmic order through the Devas’ victories over disruptive Asuric forces.
It highlights the practical role of upāya (strategy and appropriate means): rulers are expected to protect order and defeat adharma through timely, effective measures rather than mere force.
No Vāstu or ritual procedure is stated here; the focus is martial and ethical—victory achieved through varied means and the fall of principal leaders.