Declension table of ?brāhmasiddhānta

Masculine	Singular	Dual	Plural
Nominative	brāhmasiddhāntaḥ	brāhmasiddhāntau	brāhmasiddhāntāḥ
Vocative	brāhmasiddhānta	brāhmasiddhāntau	brāhmasiddhāntāḥ
Accusative	brāhmasiddhāntam	brāhmasiddhāntau	brāhmasiddhāntān
Instrumental	brāhmasiddhāntena	brāhmasiddhāntābhyām	brāhmasiddhāntaiḥ brāhmasiddhāntebhiḥ
Dative	brāhmasiddhāntāya	brāhmasiddhāntābhyām	brāhmasiddhāntebhyaḥ
Ablative	brāhmasiddhāntāt	brāhmasiddhāntābhyām	brāhmasiddhāntebhyaḥ
Genitive	brāhmasiddhāntasya	brāhmasiddhāntayoḥ	brāhmasiddhāntānām
Locative	brāhmasiddhānte	brāhmasiddhāntayoḥ	brāhmasiddhānteṣu

Compound brāhmasiddhānta -

Adverb -brāhmasiddhāntam -brāhmasiddhāntāt