Declension table of ?bṛhaddurga

Masculine	Singular	Dual	Plural
Nominative	bṛhaddurgaḥ	bṛhaddurgau	bṛhaddurgāḥ
Vocative	bṛhaddurga	bṛhaddurgau	bṛhaddurgāḥ
Accusative	bṛhaddurgam	bṛhaddurgau	bṛhaddurgān
Instrumental	bṛhaddurgeṇa	bṛhaddurgābhyām	bṛhaddurgaiḥ bṛhaddurgebhiḥ
Dative	bṛhaddurgāya	bṛhaddurgābhyām	bṛhaddurgebhyaḥ
Ablative	bṛhaddurgāt	bṛhaddurgābhyām	bṛhaddurgebhyaḥ
Genitive	bṛhaddurgasya	bṛhaddurgayoḥ	bṛhaddurgāṇām
Locative	bṛhaddurge	bṛhaddurgayoḥ	bṛhaddurgeṣu

Compound bṛhaddurga -

Adverb -bṛhaddurgam -bṛhaddurgāt