Declension table of ?yaṣṭavya

Masculine	Singular	Dual	Plural
Nominative	yaṣṭavyaḥ	yaṣṭavyau	yaṣṭavyāḥ
Vocative	yaṣṭavya	yaṣṭavyau	yaṣṭavyāḥ
Accusative	yaṣṭavyam	yaṣṭavyau	yaṣṭavyān
Instrumental	yaṣṭavyena	yaṣṭavyābhyām	yaṣṭavyaiḥ yaṣṭavyebhiḥ
Dative	yaṣṭavyāya	yaṣṭavyābhyām	yaṣṭavyebhyaḥ
Ablative	yaṣṭavyāt	yaṣṭavyābhyām	yaṣṭavyebhyaḥ
Genitive	yaṣṭavyasya	yaṣṭavyayoḥ	yaṣṭavyānām
Locative	yaṣṭavye	yaṣṭavyayoḥ	yaṣṭavyeṣu

Compound yaṣṭavya -

Adverb -yaṣṭavyam -yaṣṭavyāt