Declension table of ?siddhasaṅgha

Masculine	Singular	Dual	Plural
Nominative	siddhasaṅghaḥ	siddhasaṅghau	siddhasaṅghāḥ
Vocative	siddhasaṅgha	siddhasaṅghau	siddhasaṅghāḥ
Accusative	siddhasaṅgham	siddhasaṅghau	siddhasaṅghān
Instrumental	siddhasaṅghena	siddhasaṅghābhyām	siddhasaṅghaiḥ siddhasaṅghebhiḥ
Dative	siddhasaṅghāya	siddhasaṅghābhyām	siddhasaṅghebhyaḥ
Ablative	siddhasaṅghāt	siddhasaṅghābhyām	siddhasaṅghebhyaḥ
Genitive	siddhasaṅghasya	siddhasaṅghayoḥ	siddhasaṅghānām
Locative	siddhasaṅghe	siddhasaṅghayoḥ	siddhasaṅgheṣu

Compound siddhasaṅgha -

Adverb -siddhasaṅgham -siddhasaṅghāt