Declension table of ?mahāsaṅkalpa

Masculine	Singular	Dual	Plural
Nominative	mahāsaṅkalpaḥ	mahāsaṅkalpau	mahāsaṅkalpāḥ
Vocative	mahāsaṅkalpa	mahāsaṅkalpau	mahāsaṅkalpāḥ
Accusative	mahāsaṅkalpam	mahāsaṅkalpau	mahāsaṅkalpān
Instrumental	mahāsaṅkalpena	mahāsaṅkalpābhyām	mahāsaṅkalpaiḥ mahāsaṅkalpebhiḥ
Dative	mahāsaṅkalpāya	mahāsaṅkalpābhyām	mahāsaṅkalpebhyaḥ
Ablative	mahāsaṅkalpāt	mahāsaṅkalpābhyām	mahāsaṅkalpebhyaḥ
Genitive	mahāsaṅkalpasya	mahāsaṅkalpayoḥ	mahāsaṅkalpānām
Locative	mahāsaṅkalpe	mahāsaṅkalpayoḥ	mahāsaṅkalpeṣu

Compound mahāsaṅkalpa -

Adverb -mahāsaṅkalpam -mahāsaṅkalpāt