Declension table of ?kārṣṇya

Masculine	Singular	Dual	Plural
Nominative	kārṣṇyaḥ	kārṣṇyau	kārṣṇyāḥ
Vocative	kārṣṇya	kārṣṇyau	kārṣṇyāḥ
Accusative	kārṣṇyam	kārṣṇyau	kārṣṇyān
Instrumental	kārṣṇyena	kārṣṇyābhyām	kārṣṇyaiḥ kārṣṇyebhiḥ
Dative	kārṣṇyāya	kārṣṇyābhyām	kārṣṇyebhyaḥ
Ablative	kārṣṇyāt	kārṣṇyābhyām	kārṣṇyebhyaḥ
Genitive	kārṣṇyasya	kārṣṇyayoḥ	kārṣṇyānām
Locative	kārṣṇye	kārṣṇyayoḥ	kārṣṇyeṣu

Compound kārṣṇya -

Adverb -kārṣṇyam -kārṣṇyāt