Declension table of ?karmadhvaṃsa

Masculine	Singular	Dual	Plural
Nominative	karmadhvaṃsaḥ	karmadhvaṃsau	karmadhvaṃsāḥ
Vocative	karmadhvaṃsa	karmadhvaṃsau	karmadhvaṃsāḥ
Accusative	karmadhvaṃsam	karmadhvaṃsau	karmadhvaṃsān
Instrumental	karmadhvaṃsena	karmadhvaṃsābhyām	karmadhvaṃsaiḥ karmadhvaṃsebhiḥ
Dative	karmadhvaṃsāya	karmadhvaṃsābhyām	karmadhvaṃsebhyaḥ
Ablative	karmadhvaṃsāt	karmadhvaṃsābhyām	karmadhvaṃsebhyaḥ
Genitive	karmadhvaṃsasya	karmadhvaṃsayoḥ	karmadhvaṃsānām
Locative	karmadhvaṃse	karmadhvaṃsayoḥ	karmadhvaṃseṣu

Compound karmadhvaṃsa -

Adverb -karmadhvaṃsam -karmadhvaṃsāt