Declension table of ?siddhasaṅkalpa

Neuter	Singular	Dual	Plural
Nominative	siddhasaṅkalpam	siddhasaṅkalpe	siddhasaṅkalpāni
Vocative	siddhasaṅkalpa	siddhasaṅkalpe	siddhasaṅkalpāni
Accusative	siddhasaṅkalpam	siddhasaṅkalpe	siddhasaṅkalpāni
Instrumental	siddhasaṅkalpena	siddhasaṅkalpābhyām	siddhasaṅkalpaiḥ
Dative	siddhasaṅkalpāya	siddhasaṅkalpābhyām	siddhasaṅkalpebhyaḥ
Ablative	siddhasaṅkalpāt	siddhasaṅkalpābhyām	siddhasaṅkalpebhyaḥ
Genitive	siddhasaṅkalpasya	siddhasaṅkalpayoḥ	siddhasaṅkalpānām
Locative	siddhasaṅkalpe	siddhasaṅkalpayoḥ	siddhasaṅkalpeṣu

Compound siddhasaṅkalpa -

Adverb -siddhasaṅkalpam -siddhasaṅkalpāt