Declension table of ?susthakalpa

Neuter	Singular	Dual	Plural
Nominative	susthakalpam	susthakalpe	susthakalpāni
Vocative	susthakalpa	susthakalpe	susthakalpāni
Accusative	susthakalpam	susthakalpe	susthakalpāni
Instrumental	susthakalpena	susthakalpābhyām	susthakalpaiḥ
Dative	susthakalpāya	susthakalpābhyām	susthakalpebhyaḥ
Ablative	susthakalpāt	susthakalpābhyām	susthakalpebhyaḥ
Genitive	susthakalpasya	susthakalpayoḥ	susthakalpānām
Locative	susthakalpe	susthakalpayoḥ	susthakalpeṣu

Compound susthakalpa -

Adverb -susthakalpam -susthakalpāt