Declension table of ?gahayitavya

Neuter	Singular	Dual	Plural
Nominative	gahayitavyam	gahayitavye	gahayitavyāni
Vocative	gahayitavya	gahayitavye	gahayitavyāni
Accusative	gahayitavyam	gahayitavye	gahayitavyāni
Instrumental	gahayitavyena	gahayitavyābhyām	gahayitavyaiḥ
Dative	gahayitavyāya	gahayitavyābhyām	gahayitavyebhyaḥ
Ablative	gahayitavyāt	gahayitavyābhyām	gahayitavyebhyaḥ
Genitive	gahayitavyasya	gahayitavyayoḥ	gahayitavyānām
Locative	gahayitavye	gahayitavyayoḥ	gahayitavyeṣu

Compound gahayitavya -

Adverb -gahayitavyam -gahayitavyāt