Declension table of ?upahastya

Neuter	Singular	Dual	Plural
Nominative	upahastyam	upahastye	upahastyāni
Vocative	upahastya	upahastye	upahastyāni
Accusative	upahastyam	upahastye	upahastyāni
Instrumental	upahastyena	upahastyābhyām	upahastyaiḥ
Dative	upahastyāya	upahastyābhyām	upahastyebhyaḥ
Ablative	upahastyāt	upahastyābhyām	upahastyebhyaḥ
Genitive	upahastyasya	upahastyayoḥ	upahastyānām
Locative	upahastye	upahastyayoḥ	upahastyeṣu

Compound upahastya -

Adverb -upahastyam -upahastyāt