Declension table of ?siddhikārin

Neuter	Singular	Dual	Plural
Nominative	siddhikāri	siddhikāriṇī	siddhikārīṇi
Vocative	siddhikārin siddhikāri	siddhikāriṇī	siddhikārīṇi
Accusative	siddhikāri	siddhikāriṇī	siddhikārīṇi
Instrumental	siddhikāriṇā	siddhikāribhyām	siddhikāribhiḥ
Dative	siddhikāriṇe	siddhikāribhyām	siddhikāribhyaḥ
Ablative	siddhikāriṇaḥ	siddhikāribhyām	siddhikāribhyaḥ
Genitive	siddhikāriṇaḥ	siddhikāriṇoḥ	siddhikāriṇām
Locative	siddhikāriṇi	siddhikāriṇoḥ	siddhikāriṣu

Compound siddhikāri -

Adverb -siddhikāri