Declension table of ?sādhra

Neuter	Singular	Dual	Plural
Nominative	sādhram	sādhre	sādhrāṇi
Vocative	sādhra	sādhre	sādhrāṇi
Accusative	sādhram	sādhre	sādhrāṇi
Instrumental	sādhreṇa	sādhrābhyām	sādhraiḥ
Dative	sādhrāya	sādhrābhyām	sādhrebhyaḥ
Ablative	sādhrāt	sādhrābhyām	sādhrebhyaḥ
Genitive	sādhrasya	sādhrayoḥ	sādhrāṇām
Locative	sādhre	sādhrayoḥ	sādhreṣu

Compound sādhra -

Adverb -sādhram -sādhrāt