Declension table of ?gardhitavya

Masculine	Singular	Dual	Plural
Nominative	gardhitavyaḥ	gardhitavyau	gardhitavyāḥ
Vocative	gardhitavya	gardhitavyau	gardhitavyāḥ
Accusative	gardhitavyam	gardhitavyau	gardhitavyān
Instrumental	gardhitavyena	gardhitavyābhyām	gardhitavyaiḥ gardhitavyebhiḥ
Dative	gardhitavyāya	gardhitavyābhyām	gardhitavyebhyaḥ
Ablative	gardhitavyāt	gardhitavyābhyām	gardhitavyebhyaḥ
Genitive	gardhitavyasya	gardhitavyayoḥ	gardhitavyānām
Locative	gardhitavye	gardhitavyayoḥ	gardhitavyeṣu

Compound gardhitavya -

Adverb -gardhitavyam -gardhitavyāt