Declension table of ?upāṅkya

Masculine	Singular	Dual	Plural
Nominative	upāṅkyaḥ	upāṅkyau	upāṅkyāḥ
Vocative	upāṅkya	upāṅkyau	upāṅkyāḥ
Accusative	upāṅkyam	upāṅkyau	upāṅkyān
Instrumental	upāṅkyena	upāṅkyābhyām	upāṅkyaiḥ upāṅkyebhiḥ
Dative	upāṅkyāya	upāṅkyābhyām	upāṅkyebhyaḥ
Ablative	upāṅkyāt	upāṅkyābhyām	upāṅkyebhyaḥ
Genitive	upāṅkyasya	upāṅkyayoḥ	upāṅkyānām
Locative	upāṅkye	upāṅkyayoḥ	upāṅkyeṣu

Compound upāṅkya -

Adverb -upāṅkyam -upāṅkyāt