Declension table of ?siddhaloka

Masculine	Singular	Dual	Plural
Nominative	siddhalokaḥ	siddhalokau	siddhalokāḥ
Vocative	siddhaloka	siddhalokau	siddhalokāḥ
Accusative	siddhalokam	siddhalokau	siddhalokān
Instrumental	siddhalokena	siddhalokābhyām	siddhalokaiḥ siddhalokebhiḥ
Dative	siddhalokāya	siddhalokābhyām	siddhalokebhyaḥ
Ablative	siddhalokāt	siddhalokābhyām	siddhalokebhyaḥ
Genitive	siddhalokasya	siddhalokayoḥ	siddhalokānām
Locative	siddhaloke	siddhalokayoḥ	siddhalokeṣu

Compound siddhaloka -

Adverb -siddhalokam -siddhalokāt