Declension table of ?siddhikāraka

Masculine	Singular	Dual	Plural
Nominative	siddhikārakaḥ	siddhikārakau	siddhikārakāḥ
Vocative	siddhikāraka	siddhikārakau	siddhikārakāḥ
Accusative	siddhikārakam	siddhikārakau	siddhikārakān
Instrumental	siddhikārakeṇa	siddhikārakābhyām	siddhikārakaiḥ siddhikārakebhiḥ
Dative	siddhikārakāya	siddhikārakābhyām	siddhikārakebhyaḥ
Ablative	siddhikārakāt	siddhikārakābhyām	siddhikārakebhyaḥ
Genitive	siddhikārakasya	siddhikārakayoḥ	siddhikārakāṇām
Locative	siddhikārake	siddhikārakayoḥ	siddhikārakeṣu

Compound siddhikāraka -

Adverb -siddhikārakam -siddhikārakāt