Declension table of ?dṛḍharatha

Masculine	Singular	Dual	Plural
Nominative	dṛḍharathaḥ	dṛḍharathau	dṛḍharathāḥ
Vocative	dṛḍharatha	dṛḍharathau	dṛḍharathāḥ
Accusative	dṛḍharatham	dṛḍharathau	dṛḍharathān
Instrumental	dṛḍharathena	dṛḍharathābhyām	dṛḍharathaiḥ dṛḍharathebhiḥ
Dative	dṛḍharathāya	dṛḍharathābhyām	dṛḍharathebhyaḥ
Ablative	dṛḍharathāt	dṛḍharathābhyām	dṛḍharathebhyaḥ
Genitive	dṛḍharathasya	dṛḍharathayoḥ	dṛḍharathānām
Locative	dṛḍharathe	dṛḍharathayoḥ	dṛḍharatheṣu

Compound dṛḍharatha -

Adverb -dṛḍharatham -dṛḍharathāt