Declension table of ?niṣṭānaka

Masculine	Singular	Dual	Plural
Nominative	niṣṭānakaḥ	niṣṭānakau	niṣṭānakāḥ
Vocative	niṣṭānaka	niṣṭānakau	niṣṭānakāḥ
Accusative	niṣṭānakam	niṣṭānakau	niṣṭānakān
Instrumental	niṣṭānakena	niṣṭānakābhyām	niṣṭānakaiḥ niṣṭānakebhiḥ
Dative	niṣṭānakāya	niṣṭānakābhyām	niṣṭānakebhyaḥ
Ablative	niṣṭānakāt	niṣṭānakābhyām	niṣṭānakebhyaḥ
Genitive	niṣṭānakasya	niṣṭānakayoḥ	niṣṭānakānām
Locative	niṣṭānake	niṣṭānakayoḥ	niṣṭānakeṣu

Compound niṣṭānaka -

Adverb -niṣṭānakam -niṣṭānakāt