Declension table of ?nidhruva

Masculine	Singular	Dual	Plural
Nominative	nidhruvaḥ	nidhruvau	nidhruvāḥ
Vocative	nidhruva	nidhruvau	nidhruvāḥ
Accusative	nidhruvam	nidhruvau	nidhruvān
Instrumental	nidhruveṇa	nidhruvābhyām	nidhruvaiḥ nidhruvebhiḥ
Dative	nidhruvāya	nidhruvābhyām	nidhruvebhyaḥ
Ablative	nidhruvāt	nidhruvābhyām	nidhruvebhyaḥ
Genitive	nidhruvasya	nidhruvayoḥ	nidhruvāṇām
Locative	nidhruve	nidhruvayoḥ	nidhruveṣu

Compound nidhruva -

Adverb -nidhruvam -nidhruvāt