Declension table of ?kṛṣṇapakṣīya

Masculine	Singular	Dual	Plural
Nominative	kṛṣṇapakṣīyaḥ	kṛṣṇapakṣīyau	kṛṣṇapakṣīyāḥ
Vocative	kṛṣṇapakṣīya	kṛṣṇapakṣīyau	kṛṣṇapakṣīyāḥ
Accusative	kṛṣṇapakṣīyam	kṛṣṇapakṣīyau	kṛṣṇapakṣīyān
Instrumental	kṛṣṇapakṣīyeṇa	kṛṣṇapakṣīyābhyām	kṛṣṇapakṣīyaiḥ kṛṣṇapakṣīyebhiḥ
Dative	kṛṣṇapakṣīyāya	kṛṣṇapakṣīyābhyām	kṛṣṇapakṣīyebhyaḥ
Ablative	kṛṣṇapakṣīyāt	kṛṣṇapakṣīyābhyām	kṛṣṇapakṣīyebhyaḥ
Genitive	kṛṣṇapakṣīyasya	kṛṣṇapakṣīyayoḥ	kṛṣṇapakṣīyāṇām
Locative	kṛṣṇapakṣīye	kṛṣṇapakṣīyayoḥ	kṛṣṇapakṣīyeṣu

Compound kṛṣṇapakṣīya -

Adverb -kṛṣṇapakṣīyam -kṛṣṇapakṣīyāt