Declension table of ?svartavya

Masculine	Singular	Dual	Plural
Nominative	svartavyaḥ	svartavyau	svartavyāḥ
Vocative	svartavya	svartavyau	svartavyāḥ
Accusative	svartavyam	svartavyau	svartavyān
Instrumental	svartavyena	svartavyābhyām	svartavyaiḥ svartavyebhiḥ
Dative	svartavyāya	svartavyābhyām	svartavyebhyaḥ
Ablative	svartavyāt	svartavyābhyām	svartavyebhyaḥ
Genitive	svartavyasya	svartavyayoḥ	svartavyānām
Locative	svartavye	svartavyayoḥ	svartavyeṣu

Compound svartavya -

Adverb -svartavyam -svartavyāt