Declension table of ?rupyaka

Masculine	Singular	Dual	Plural
Nominative	rupyakaḥ	rupyakau	rupyakāḥ
Vocative	rupyaka	rupyakau	rupyakāḥ
Accusative	rupyakam	rupyakau	rupyakān
Instrumental	rupyakeṇa	rupyakābhyām	rupyakaiḥ rupyakebhiḥ
Dative	rupyakāya	rupyakābhyām	rupyakebhyaḥ
Ablative	rupyakāt	rupyakābhyām	rupyakebhyaḥ
Genitive	rupyakasya	rupyakayoḥ	rupyakāṇām
Locative	rupyake	rupyakayoḥ	rupyakeṣu

Compound rupyaka -

Adverb -rupyakam -rupyakāt