Declension table of ?niyamavat

Masculine	Singular	Dual	Plural
Nominative	niyamavān	niyamavantau	niyamavantaḥ
Vocative	niyamavan	niyamavantau	niyamavantaḥ
Accusative	niyamavantam	niyamavantau	niyamavataḥ
Instrumental	niyamavatā	niyamavadbhyām	niyamavadbhiḥ
Dative	niyamavate	niyamavadbhyām	niyamavadbhyaḥ
Ablative	niyamavataḥ	niyamavadbhyām	niyamavadbhyaḥ
Genitive	niyamavataḥ	niyamavatoḥ	niyamavatām
Locative	niyamavati	niyamavatoḥ	niyamavatsu

Compound niyamavat -

Adverb -niyamavantam