Declension table of ?topya

Neuter	Singular	Dual	Plural
Nominative	topyam	topye	topyāni
Vocative	topya	topye	topyāni
Accusative	topyam	topye	topyāni
Instrumental	topyena	topyābhyām	topyaiḥ
Dative	topyāya	topyābhyām	topyebhyaḥ
Ablative	topyāt	topyābhyām	topyebhyaḥ
Genitive	topyasya	topyayoḥ	topyānām
Locative	topye	topyayoḥ	topyeṣu

Compound topya -

Adverb -topyam -topyāt