Declension table of ?gandhayitavya

Masculine	Singular	Dual	Plural
Nominative	gandhayitavyaḥ	gandhayitavyau	gandhayitavyāḥ
Vocative	gandhayitavya	gandhayitavyau	gandhayitavyāḥ
Accusative	gandhayitavyam	gandhayitavyau	gandhayitavyān
Instrumental	gandhayitavyena	gandhayitavyābhyām	gandhayitavyaiḥ gandhayitavyebhiḥ
Dative	gandhayitavyāya	gandhayitavyābhyām	gandhayitavyebhyaḥ
Ablative	gandhayitavyāt	gandhayitavyābhyām	gandhayitavyebhyaḥ
Genitive	gandhayitavyasya	gandhayitavyayoḥ	gandhayitavyānām
Locative	gandhayitavye	gandhayitavyayoḥ	gandhayitavyeṣu

Compound gandhayitavya -

Adverb -gandhayitavyam -gandhayitavyāt