Declension table of ?vṛṣadvīpa

Masculine	Singular	Dual	Plural
Nominative	vṛṣadvīpaḥ	vṛṣadvīpau	vṛṣadvīpāḥ
Vocative	vṛṣadvīpa	vṛṣadvīpau	vṛṣadvīpāḥ
Accusative	vṛṣadvīpam	vṛṣadvīpau	vṛṣadvīpān
Instrumental	vṛṣadvīpena	vṛṣadvīpābhyām	vṛṣadvīpaiḥ vṛṣadvīpebhiḥ
Dative	vṛṣadvīpāya	vṛṣadvīpābhyām	vṛṣadvīpebhyaḥ
Ablative	vṛṣadvīpāt	vṛṣadvīpābhyām	vṛṣadvīpebhyaḥ
Genitive	vṛṣadvīpasya	vṛṣadvīpayoḥ	vṛṣadvīpānām
Locative	vṛṣadvīpe	vṛṣadvīpayoḥ	vṛṣadvīpeṣu

Compound vṛṣadvīpa -

Adverb -vṛṣadvīpam -vṛṣadvīpāt