Declension table of ?kārṣṇasundari

Masculine	Singular	Dual	Plural
Nominative	kārṣṇasundariḥ	kārṣṇasundarī	kārṣṇasundarayaḥ
Vocative	kārṣṇasundare	kārṣṇasundarī	kārṣṇasundarayaḥ
Accusative	kārṣṇasundarim	kārṣṇasundarī	kārṣṇasundarīn
Instrumental	kārṣṇasundariṇā	kārṣṇasundaribhyām	kārṣṇasundaribhiḥ
Dative	kārṣṇasundaraye	kārṣṇasundaribhyām	kārṣṇasundaribhyaḥ
Ablative	kārṣṇasundareḥ	kārṣṇasundaribhyām	kārṣṇasundaribhyaḥ
Genitive	kārṣṇasundareḥ	kārṣṇasundaryoḥ	kārṣṇasundarīṇām
Locative	kārṣṇasundarau	kārṣṇasundaryoḥ	kārṣṇasundariṣu

Compound kārṣṇasundari -

Adverb -kārṣṇasundari