Declension table of ?niṣṭakvan

Neuter	Singular	Dual	Plural
Nominative	niṣṭakva	niṣṭakvnī niṣṭakvanī	niṣṭakvāni
Vocative	niṣṭakvan niṣṭakva	niṣṭakvnī niṣṭakvanī	niṣṭakvāni
Accusative	niṣṭakva	niṣṭakvnī niṣṭakvanī	niṣṭakvāni
Instrumental	niṣṭakvanā	niṣṭakvabhyām	niṣṭakvabhiḥ
Dative	niṣṭakvane	niṣṭakvabhyām	niṣṭakvabhyaḥ
Ablative	niṣṭakvanaḥ	niṣṭakvabhyām	niṣṭakvabhyaḥ
Genitive	niṣṭakvanaḥ	niṣṭakvanoḥ	niṣṭakvanām
Locative	niṣṭakvani	niṣṭakvanoḥ	niṣṭakvasu

Compound niṣṭakva -

Adverb -niṣṭakva -niṣṭakvam