Declension table of ?sidhra

Masculine	Singular	Dual	Plural
Nominative	sidhraḥ	sidhrau	sidhrāḥ
Vocative	sidhra	sidhrau	sidhrāḥ
Accusative	sidhram	sidhrau	sidhrān
Instrumental	sidhreṇa	sidhrābhyām	sidhraiḥ sidhrebhiḥ
Dative	sidhrāya	sidhrābhyām	sidhrebhyaḥ
Ablative	sidhrāt	sidhrābhyām	sidhrebhyaḥ
Genitive	sidhrasya	sidhrayoḥ	sidhrāṇām
Locative	sidhre	sidhrayoḥ	sidhreṣu

Compound sidhra -

Adverb -sidhram -sidhrāt