Declension table of viparyaya

Masculine	Singular	Dual	Plural
Nominative	viparyayaḥ	viparyayau	viparyayāḥ
Vocative	viparyaya	viparyayau	viparyayāḥ
Accusative	viparyayam	viparyayau	viparyayān
Instrumental	viparyayeṇa	viparyayābhyām	viparyayaiḥ viparyayebhiḥ
Dative	viparyayāya	viparyayābhyām	viparyayebhyaḥ
Ablative	viparyayāt	viparyayābhyām	viparyayebhyaḥ
Genitive	viparyayasya	viparyayayoḥ	viparyayāṇām
Locative	viparyaye	viparyayayoḥ	viparyayeṣu

Compound viparyaya -

Adverb -viparyayam -viparyayāt