Declension table of ?karasvana

Masculine	Singular	Dual	Plural
Nominative	karasvanaḥ	karasvanau	karasvanāḥ
Vocative	karasvana	karasvanau	karasvanāḥ
Accusative	karasvanam	karasvanau	karasvanān
Instrumental	karasvanena	karasvanābhyām	karasvanaiḥ karasvanebhiḥ
Dative	karasvanāya	karasvanābhyām	karasvanebhyaḥ
Ablative	karasvanāt	karasvanābhyām	karasvanebhyaḥ
Genitive	karasvanasya	karasvanayoḥ	karasvanānām
Locative	karasvane	karasvanayoḥ	karasvaneṣu

Compound karasvana -

Adverb -karasvanam -karasvanāt