Declension table of ?vardhayitavya

Masculine	Singular	Dual	Plural
Nominative	vardhayitavyaḥ	vardhayitavyau	vardhayitavyāḥ
Vocative	vardhayitavya	vardhayitavyau	vardhayitavyāḥ
Accusative	vardhayitavyam	vardhayitavyau	vardhayitavyān
Instrumental	vardhayitavyena	vardhayitavyābhyām	vardhayitavyaiḥ vardhayitavyebhiḥ
Dative	vardhayitavyāya	vardhayitavyābhyām	vardhayitavyebhyaḥ
Ablative	vardhayitavyāt	vardhayitavyābhyām	vardhayitavyebhyaḥ
Genitive	vardhayitavyasya	vardhayitavyayoḥ	vardhayitavyānām
Locative	vardhayitavye	vardhayitavyayoḥ	vardhayitavyeṣu

Compound vardhayitavya -

Adverb -vardhayitavyam -vardhayitavyāt