Declension table of kṛṣṇāṣṭamī

Feminine	Singular	Dual	Plural
Nominative	kṛṣṇāṣṭamī	kṛṣṇāṣṭamyau	kṛṣṇāṣṭamyaḥ
Vocative	kṛṣṇāṣṭami	kṛṣṇāṣṭamyau	kṛṣṇāṣṭamyaḥ
Accusative	kṛṣṇāṣṭamīm	kṛṣṇāṣṭamyau	kṛṣṇāṣṭamīḥ
Instrumental	kṛṣṇāṣṭamyā	kṛṣṇāṣṭamībhyām	kṛṣṇāṣṭamībhiḥ
Dative	kṛṣṇāṣṭamyai	kṛṣṇāṣṭamībhyām	kṛṣṇāṣṭamībhyaḥ
Ablative	kṛṣṇāṣṭamyāḥ	kṛṣṇāṣṭamībhyām	kṛṣṇāṣṭamībhyaḥ
Genitive	kṛṣṇāṣṭamyāḥ	kṛṣṇāṣṭamyoḥ	kṛṣṇāṣṭamīnām
Locative	kṛṣṇāṣṭamyām	kṛṣṇāṣṭamyoḥ	kṛṣṇāṣṭamīṣu

Compound kṛṣṇāṣṭami - kṛṣṇāṣṭamī -

Adverb -kṛṣṇāṣṭami