Declension table of ?upāyacatuṣṭaya

Neuter	Singular	Dual	Plural
Nominative	upāyacatuṣṭayam	upāyacatuṣṭaye	upāyacatuṣṭayāni
Vocative	upāyacatuṣṭaya	upāyacatuṣṭaye	upāyacatuṣṭayāni
Accusative	upāyacatuṣṭayam	upāyacatuṣṭaye	upāyacatuṣṭayāni
Instrumental	upāyacatuṣṭayena	upāyacatuṣṭayābhyām	upāyacatuṣṭayaiḥ
Dative	upāyacatuṣṭayāya	upāyacatuṣṭayābhyām	upāyacatuṣṭayebhyaḥ
Ablative	upāyacatuṣṭayāt	upāyacatuṣṭayābhyām	upāyacatuṣṭayebhyaḥ
Genitive	upāyacatuṣṭayasya	upāyacatuṣṭayayoḥ	upāyacatuṣṭayānām
Locative	upāyacatuṣṭaye	upāyacatuṣṭayayoḥ	upāyacatuṣṭayeṣu

Compound upāyacatuṣṭaya -

Adverb -upāyacatuṣṭayam -upāyacatuṣṭayāt