Declension table of ?siddhibīja

Neuter	Singular	Dual	Plural
Nominative	siddhibījam	siddhibīje	siddhibījāni
Vocative	siddhibīja	siddhibīje	siddhibījāni
Accusative	siddhibījam	siddhibīje	siddhibījāni
Instrumental	siddhibījena	siddhibījābhyām	siddhibījaiḥ
Dative	siddhibījāya	siddhibījābhyām	siddhibījebhyaḥ
Ablative	siddhibījāt	siddhibījābhyām	siddhibījebhyaḥ
Genitive	siddhibījasya	siddhibījayoḥ	siddhibījānām
Locative	siddhibīje	siddhibījayoḥ	siddhibījeṣu

Compound siddhibīja -

Adverb -siddhibījam -siddhibījāt