Declension table of ?sundarasiddhānta

Masculine	Singular	Dual	Plural
Nominative	sundarasiddhāntaḥ	sundarasiddhāntau	sundarasiddhāntāḥ
Vocative	sundarasiddhānta	sundarasiddhāntau	sundarasiddhāntāḥ
Accusative	sundarasiddhāntam	sundarasiddhāntau	sundarasiddhāntān
Instrumental	sundarasiddhāntena	sundarasiddhāntābhyām	sundarasiddhāntaiḥ sundarasiddhāntebhiḥ
Dative	sundarasiddhāntāya	sundarasiddhāntābhyām	sundarasiddhāntebhyaḥ
Ablative	sundarasiddhāntāt	sundarasiddhāntābhyām	sundarasiddhāntebhyaḥ
Genitive	sundarasiddhāntasya	sundarasiddhāntayoḥ	sundarasiddhāntānām
Locative	sundarasiddhānte	sundarasiddhāntayoḥ	sundarasiddhānteṣu

Compound sundarasiddhānta -

Adverb -sundarasiddhāntam -sundarasiddhāntāt