Declension table of ?ṭaṅkya

Neuter	Singular	Dual	Plural
Nominative	ṭaṅkyam	ṭaṅkye	ṭaṅkyāni
Vocative	ṭaṅkya	ṭaṅkye	ṭaṅkyāni
Accusative	ṭaṅkyam	ṭaṅkye	ṭaṅkyāni
Instrumental	ṭaṅkyena	ṭaṅkyābhyām	ṭaṅkyaiḥ
Dative	ṭaṅkyāya	ṭaṅkyābhyām	ṭaṅkyebhyaḥ
Ablative	ṭaṅkyāt	ṭaṅkyābhyām	ṭaṅkyebhyaḥ
Genitive	ṭaṅkyasya	ṭaṅkyayoḥ	ṭaṅkyānām
Locative	ṭaṅkye	ṭaṅkyayoḥ	ṭaṅkyeṣu

Compound ṭaṅkya -

Adverb -ṭaṅkyam -ṭaṅkyāt