Declension table of ?knotavya

Neuter	Singular	Dual	Plural
Nominative	knotavyam	knotavye	knotavyāni
Vocative	knotavya	knotavye	knotavyāni
Accusative	knotavyam	knotavye	knotavyāni
Instrumental	knotavyena	knotavyābhyām	knotavyaiḥ
Dative	knotavyāya	knotavyābhyām	knotavyebhyaḥ
Ablative	knotavyāt	knotavyābhyām	knotavyebhyaḥ
Genitive	knotavyasya	knotavyayoḥ	knotavyānām
Locative	knotavye	knotavyayoḥ	knotavyeṣu

Compound knotavya -

Adverb -knotavyam -knotavyāt