Declension table of upacāyya

Neuter	Singular	Dual	Plural
Nominative	upacāyyam	upacāyye	upacāyyāni
Vocative	upacāyya	upacāyye	upacāyyāni
Accusative	upacāyyam	upacāyye	upacāyyāni
Instrumental	upacāyyena	upacāyyābhyām	upacāyyaiḥ
Dative	upacāyyāya	upacāyyābhyām	upacāyyebhyaḥ
Ablative	upacāyyāt	upacāyyābhyām	upacāyyebhyaḥ
Genitive	upacāyyasya	upacāyyayoḥ	upacāyyānām
Locative	upacāyye	upacāyyayoḥ	upacāyyeṣu

Compound upacāyya -

Adverb -upacāyyam -upacāyyāt