Declension table of ?vasnya

Masculine	Singular	Dual	Plural
Nominative	vasnyaḥ	vasnyau	vasnyāḥ
Vocative	vasnya	vasnyau	vasnyāḥ
Accusative	vasnyam	vasnyau	vasnyān
Instrumental	vasnyena	vasnyābhyām	vasnyaiḥ vasnyebhiḥ
Dative	vasnyāya	vasnyābhyām	vasnyebhyaḥ
Ablative	vasnyāt	vasnyābhyām	vasnyebhyaḥ
Genitive	vasnyasya	vasnyayoḥ	vasnyānām
Locative	vasnye	vasnyayoḥ	vasnyeṣu

Compound vasnya -

Adverb -vasnyam -vasnyāt