Declension table of suvastra

Masculine	Singular	Dual	Plural
Nominative	suvastraḥ	suvastrau	suvastrāḥ
Vocative	suvastra	suvastrau	suvastrāḥ
Accusative	suvastram	suvastrau	suvastrān
Instrumental	suvastreṇa	suvastrābhyām	suvastraiḥ suvastrebhiḥ
Dative	suvastrāya	suvastrābhyām	suvastrebhyaḥ
Ablative	suvastrāt	suvastrābhyām	suvastrebhyaḥ
Genitive	suvastrasya	suvastrayoḥ	suvastrāṇām
Locative	suvastre	suvastrayoḥ	suvastreṣu

Compound suvastra -

Adverb -suvastram -suvastrāt