Declension table of ?tastakāna

Neuter	Singular	Dual	Plural
Nominative	tastakānam	tastakāne	tastakānāni
Vocative	tastakāna	tastakāne	tastakānāni
Accusative	tastakānam	tastakāne	tastakānāni
Instrumental	tastakānena	tastakānābhyām	tastakānaiḥ
Dative	tastakānāya	tastakānābhyām	tastakānebhyaḥ
Ablative	tastakānāt	tastakānābhyām	tastakānebhyaḥ
Genitive	tastakānasya	tastakānayoḥ	tastakānānām
Locative	tastakāne	tastakānayoḥ	tastakāneṣu

Compound tastakāna -

Adverb -tastakānam -tastakānāt