Declension table of ?uṣṭratva

Neuter	Singular	Dual	Plural
Nominative	uṣṭratvam	uṣṭratve	uṣṭratvāni
Vocative	uṣṭratva	uṣṭratve	uṣṭratvāni
Accusative	uṣṭratvam	uṣṭratve	uṣṭratvāni
Instrumental	uṣṭratvena	uṣṭratvābhyām	uṣṭratvaiḥ
Dative	uṣṭratvāya	uṣṭratvābhyām	uṣṭratvebhyaḥ
Ablative	uṣṭratvāt	uṣṭratvābhyām	uṣṭratvebhyaḥ
Genitive	uṣṭratvasya	uṣṭratvayoḥ	uṣṭratvānām
Locative	uṣṭratve	uṣṭratvayoḥ	uṣṭratveṣu

Compound uṣṭratva -

Adverb -uṣṭratvam -uṣṭratvāt