Declension table of ?siddhijñāna

Neuter	Singular	Dual	Plural
Nominative	siddhijñānam	siddhijñāne	siddhijñānāni
Vocative	siddhijñāna	siddhijñāne	siddhijñānāni
Accusative	siddhijñānam	siddhijñāne	siddhijñānāni
Instrumental	siddhijñānena	siddhijñānābhyām	siddhijñānaiḥ
Dative	siddhijñānāya	siddhijñānābhyām	siddhijñānebhyaḥ
Ablative	siddhijñānāt	siddhijñānābhyām	siddhijñānebhyaḥ
Genitive	siddhijñānasya	siddhijñānayoḥ	siddhijñānānām
Locative	siddhijñāne	siddhijñānayoḥ	siddhijñāneṣu

Compound siddhijñāna -

Adverb -siddhijñānam -siddhijñānāt