Declension table of sadhana

Neuter	Singular	Dual	Plural
Nominative	sadhanam	sadhane	sadhanāni
Vocative	sadhana	sadhane	sadhanāni
Accusative	sadhanam	sadhane	sadhanāni
Instrumental	sadhanena	sadhanābhyām	sadhanaiḥ
Dative	sadhanāya	sadhanābhyām	sadhanebhyaḥ
Ablative	sadhanāt	sadhanābhyām	sadhanebhyaḥ
Genitive	sadhanasya	sadhanayoḥ	sadhanānām
Locative	sadhane	sadhanayoḥ	sadhaneṣu

Compound sadhana -

Adverb -sadhanam -sadhanāt