Declension table of ?saṅgantavat

Masculine	Singular	Dual	Plural
Nominative	saṅgantavān	saṅgantavantau	saṅgantavantaḥ
Vocative	saṅgantavan	saṅgantavantau	saṅgantavantaḥ
Accusative	saṅgantavantam	saṅgantavantau	saṅgantavataḥ
Instrumental	saṅgantavatā	saṅgantavadbhyām	saṅgantavadbhiḥ
Dative	saṅgantavate	saṅgantavadbhyām	saṅgantavadbhyaḥ
Ablative	saṅgantavataḥ	saṅgantavadbhyām	saṅgantavadbhyaḥ
Genitive	saṅgantavataḥ	saṅgantavatoḥ	saṅgantavatām
Locative	saṅgantavati	saṅgantavatoḥ	saṅgantavatsu

Compound saṅgantavat -

Adverb -saṅgantavantam