Declension table of ?maṇṭayitavya

Neuter	Singular	Dual	Plural
Nominative	maṇṭayitavyam	maṇṭayitavye	maṇṭayitavyāni
Vocative	maṇṭayitavya	maṇṭayitavye	maṇṭayitavyāni
Accusative	maṇṭayitavyam	maṇṭayitavye	maṇṭayitavyāni
Instrumental	maṇṭayitavyena	maṇṭayitavyābhyām	maṇṭayitavyaiḥ
Dative	maṇṭayitavyāya	maṇṭayitavyābhyām	maṇṭayitavyebhyaḥ
Ablative	maṇṭayitavyāt	maṇṭayitavyābhyām	maṇṭayitavyebhyaḥ
Genitive	maṇṭayitavyasya	maṇṭayitavyayoḥ	maṇṭayitavyānām
Locative	maṇṭayitavye	maṇṭayitavyayoḥ	maṇṭayitavyeṣu

Compound maṇṭayitavya -

Adverb -maṇṭayitavyam -maṇṭayitavyāt