Declension table of avatara

Masculine	Singular	Dual	Plural
Nominative	avataraḥ	avatarau	avatarāḥ
Vocative	avatara	avatarau	avatarāḥ
Accusative	avataram	avatarau	avatarān
Instrumental	avatareṇa	avatarābhyām	avataraiḥ avatarebhiḥ
Dative	avatarāya	avatarābhyām	avatarebhyaḥ
Ablative	avatarāt	avatarābhyām	avatarebhyaḥ
Genitive	avatarasya	avatarayoḥ	avatarāṇām
Locative	avatare	avatarayoḥ	avatareṣu

Compound avatara -

Adverb -avataram -avatarāt