Declension table of ?śaṅkarasiddhi

Masculine	Singular	Dual	Plural
Nominative	śaṅkarasiddhiḥ	śaṅkarasiddhī	śaṅkarasiddhayaḥ
Vocative	śaṅkarasiddhe	śaṅkarasiddhī	śaṅkarasiddhayaḥ
Accusative	śaṅkarasiddhim	śaṅkarasiddhī	śaṅkarasiddhīn
Instrumental	śaṅkarasiddhinā	śaṅkarasiddhibhyām	śaṅkarasiddhibhiḥ
Dative	śaṅkarasiddhaye	śaṅkarasiddhibhyām	śaṅkarasiddhibhyaḥ
Ablative	śaṅkarasiddheḥ	śaṅkarasiddhibhyām	śaṅkarasiddhibhyaḥ
Genitive	śaṅkarasiddheḥ	śaṅkarasiddhyoḥ	śaṅkarasiddhīnām
Locative	śaṅkarasiddhau	śaṅkarasiddhyoḥ	śaṅkarasiddhiṣu

Compound śaṅkarasiddhi -

Adverb -śaṅkarasiddhi