Declension table of ?vratapustaka

Masculine	Singular	Dual	Plural
Nominative	vratapustakaḥ	vratapustakau	vratapustakāḥ
Vocative	vratapustaka	vratapustakau	vratapustakāḥ
Accusative	vratapustakam	vratapustakau	vratapustakān
Instrumental	vratapustakena	vratapustakābhyām	vratapustakaiḥ vratapustakebhiḥ
Dative	vratapustakāya	vratapustakābhyām	vratapustakebhyaḥ
Ablative	vratapustakāt	vratapustakābhyām	vratapustakebhyaḥ
Genitive	vratapustakasya	vratapustakayoḥ	vratapustakānām
Locative	vratapustake	vratapustakayoḥ	vratapustakeṣu

Compound vratapustaka -

Adverb -vratapustakam -vratapustakāt