Declension table of ?tavya

Masculine	Singular	Dual	Plural
Nominative	tavyaḥ	tavyau	tavyāḥ
Vocative	tavya	tavyau	tavyāḥ
Accusative	tavyam	tavyau	tavyān
Instrumental	tavyena	tavyābhyām	tavyaiḥ tavyebhiḥ
Dative	tavyāya	tavyābhyām	tavyebhyaḥ
Ablative	tavyāt	tavyābhyām	tavyebhyaḥ
Genitive	tavyasya	tavyayoḥ	tavyānām
Locative	tavye	tavyayoḥ	tavyeṣu

Compound tavya -

Adverb -tavyam -tavyāt