Declension table of ?dṛḍhavajra

Masculine	Singular	Dual	Plural
Nominative	dṛḍhavajraḥ	dṛḍhavajrau	dṛḍhavajrāḥ
Vocative	dṛḍhavajra	dṛḍhavajrau	dṛḍhavajrāḥ
Accusative	dṛḍhavajram	dṛḍhavajrau	dṛḍhavajrān
Instrumental	dṛḍhavajreṇa	dṛḍhavajrābhyām	dṛḍhavajraiḥ dṛḍhavajrebhiḥ
Dative	dṛḍhavajrāya	dṛḍhavajrābhyām	dṛḍhavajrebhyaḥ
Ablative	dṛḍhavajrāt	dṛḍhavajrābhyām	dṛḍhavajrebhyaḥ
Genitive	dṛḍhavajrasya	dṛḍhavajrayoḥ	dṛḍhavajrāṇām
Locative	dṛḍhavajre	dṛḍhavajrayoḥ	dṛḍhavajreṣu

Compound dṛḍhavajra -

Adverb -dṛḍhavajram -dṛḍhavajrāt