Declension table of ?gacchetavya

Masculine	Singular	Dual	Plural
Nominative	gacchetavyaḥ	gacchetavyau	gacchetavyāḥ
Vocative	gacchetavya	gacchetavyau	gacchetavyāḥ
Accusative	gacchetavyam	gacchetavyau	gacchetavyān
Instrumental	gacchetavyena	gacchetavyābhyām	gacchetavyaiḥ gacchetavyebhiḥ
Dative	gacchetavyāya	gacchetavyābhyām	gacchetavyebhyaḥ
Ablative	gacchetavyāt	gacchetavyābhyām	gacchetavyebhyaḥ
Genitive	gacchetavyasya	gacchetavyayoḥ	gacchetavyānām
Locative	gacchetavye	gacchetavyayoḥ	gacchetavyeṣu

Compound gacchetavya -

Adverb -gacchetavyam -gacchetavyāt