Declension table of ?naṣṭapraśna

Masculine	Singular	Dual	Plural
Nominative	naṣṭapraśnaḥ	naṣṭapraśnau	naṣṭapraśnāḥ
Vocative	naṣṭapraśna	naṣṭapraśnau	naṣṭapraśnāḥ
Accusative	naṣṭapraśnam	naṣṭapraśnau	naṣṭapraśnān
Instrumental	naṣṭapraśnena	naṣṭapraśnābhyām	naṣṭapraśnaiḥ naṣṭapraśnebhiḥ
Dative	naṣṭapraśnāya	naṣṭapraśnābhyām	naṣṭapraśnebhyaḥ
Ablative	naṣṭapraśnāt	naṣṭapraśnābhyām	naṣṭapraśnebhyaḥ
Genitive	naṣṭapraśnasya	naṣṭapraśnayoḥ	naṣṭapraśnānām
Locative	naṣṭapraśne	naṣṭapraśnayoḥ	naṣṭapraśneṣu

Compound naṣṭapraśna -

Adverb -naṣṭapraśnam -naṣṭapraśnāt