Declension table of ?vasvanta

Masculine	Singular	Dual	Plural
Nominative	vasvantaḥ	vasvantau	vasvantāḥ
Vocative	vasvanta	vasvantau	vasvantāḥ
Accusative	vasvantam	vasvantau	vasvantān
Instrumental	vasvantena	vasvantābhyām	vasvantaiḥ vasvantebhiḥ
Dative	vasvantāya	vasvantābhyām	vasvantebhyaḥ
Ablative	vasvantāt	vasvantābhyām	vasvantebhyaḥ
Genitive	vasvantasya	vasvantayoḥ	vasvantānām
Locative	vasvante	vasvantayoḥ	vasvanteṣu

Compound vasvanta -

Adverb -vasvantam -vasvantāt