Declension table of ?knotavya

Masculine	Singular	Dual	Plural
Nominative	knotavyaḥ	knotavyau	knotavyāḥ
Vocative	knotavya	knotavyau	knotavyāḥ
Accusative	knotavyam	knotavyau	knotavyān
Instrumental	knotavyena	knotavyābhyām	knotavyaiḥ knotavyebhiḥ
Dative	knotavyāya	knotavyābhyām	knotavyebhyaḥ
Ablative	knotavyāt	knotavyābhyām	knotavyebhyaḥ
Genitive	knotavyasya	knotavyayoḥ	knotavyānām
Locative	knotavye	knotavyayoḥ	knotavyeṣu

Compound knotavya -

Adverb -knotavyam -knotavyāt