Declension table of ?duravatāra

Masculine	Singular	Dual	Plural
Nominative	duravatāraḥ	duravatārau	duravatārāḥ
Vocative	duravatāra	duravatārau	duravatārāḥ
Accusative	duravatāram	duravatārau	duravatārān
Instrumental	duravatāreṇa	duravatārābhyām	duravatāraiḥ duravatārebhiḥ
Dative	duravatārāya	duravatārābhyām	duravatārebhyaḥ
Ablative	duravatārāt	duravatārābhyām	duravatārebhyaḥ
Genitive	duravatārasya	duravatārayoḥ	duravatārāṇām
Locative	duravatāre	duravatārayoḥ	duravatāreṣu

Compound duravatāra -

Adverb -duravatāram -duravatārāt