Declension table of ?vidyāvataṃsa

Masculine	Singular	Dual	Plural
Nominative	vidyāvataṃsaḥ	vidyāvataṃsau	vidyāvataṃsāḥ
Vocative	vidyāvataṃsa	vidyāvataṃsau	vidyāvataṃsāḥ
Accusative	vidyāvataṃsam	vidyāvataṃsau	vidyāvataṃsān
Instrumental	vidyāvataṃsena	vidyāvataṃsābhyām	vidyāvataṃsaiḥ vidyāvataṃsebhiḥ
Dative	vidyāvataṃsāya	vidyāvataṃsābhyām	vidyāvataṃsebhyaḥ
Ablative	vidyāvataṃsāt	vidyāvataṃsābhyām	vidyāvataṃsebhyaḥ
Genitive	vidyāvataṃsasya	vidyāvataṃsayoḥ	vidyāvataṃsānām
Locative	vidyāvataṃse	vidyāvataṃsayoḥ	vidyāvataṃseṣu

Compound vidyāvataṃsa -

Adverb -vidyāvataṃsam -vidyāvataṃsāt