Declension table of vyavāya

Neuter	Singular	Dual	Plural
Nominative	vyavāyam	vyavāye	vyavāyāni
Vocative	vyavāya	vyavāye	vyavāyāni
Accusative	vyavāyam	vyavāye	vyavāyāni
Instrumental	vyavāyena	vyavāyābhyām	vyavāyaiḥ
Dative	vyavāyāya	vyavāyābhyām	vyavāyebhyaḥ
Ablative	vyavāyāt	vyavāyābhyām	vyavāyebhyaḥ
Genitive	vyavāyasya	vyavāyayoḥ	vyavāyānām
Locative	vyavāye	vyavāyayoḥ	vyavāyeṣu

Compound vyavāya -

Adverb -vyavāyam -vyavāyāt