Declension table of ?sādhika

Neuter	Singular	Dual	Plural
Nominative	sādhikam	sādhike	sādhikāni
Vocative	sādhika	sādhike	sādhikāni
Accusative	sādhikam	sādhike	sādhikāni
Instrumental	sādhikena	sādhikābhyām	sādhikaiḥ
Dative	sādhikāya	sādhikābhyām	sādhikebhyaḥ
Ablative	sādhikāt	sādhikābhyām	sādhikebhyaḥ
Genitive	sādhikasya	sādhikayoḥ	sādhikānām
Locative	sādhike	sādhikayoḥ	sādhikeṣu

Compound sādhika -

Adverb -sādhikam -sādhikāt