Declension table of ?annavastra

Neuter	Singular	Dual	Plural
Nominative	annavastram	annavastre	annavastrāṇi
Vocative	annavastra	annavastre	annavastrāṇi
Accusative	annavastram	annavastre	annavastrāṇi
Instrumental	annavastreṇa	annavastrābhyām	annavastraiḥ
Dative	annavastrāya	annavastrābhyām	annavastrebhyaḥ
Ablative	annavastrāt	annavastrābhyām	annavastrebhyaḥ
Genitive	annavastrasya	annavastrayoḥ	annavastrāṇām
Locative	annavastre	annavastrayoḥ	annavastreṣu

Compound annavastra -

Adverb -annavastram -annavastrāt