Declension table of ?durdharṣatva

Neuter	Singular	Dual	Plural
Nominative	durdharṣatvam	durdharṣatve	durdharṣatvāni
Vocative	durdharṣatva	durdharṣatve	durdharṣatvāni
Accusative	durdharṣatvam	durdharṣatve	durdharṣatvāni
Instrumental	durdharṣatvena	durdharṣatvābhyām	durdharṣatvaiḥ
Dative	durdharṣatvāya	durdharṣatvābhyām	durdharṣatvebhyaḥ
Ablative	durdharṣatvāt	durdharṣatvābhyām	durdharṣatvebhyaḥ
Genitive	durdharṣatvasya	durdharṣatvayoḥ	durdharṣatvānām
Locative	durdharṣatve	durdharṣatvayoḥ	durdharṣatveṣu

Compound durdharṣatva -

Adverb -durdharṣatvam -durdharṣatvāt