Declension table of ?tārkṣyāsana

Neuter	Singular	Dual	Plural
Nominative	tārkṣyāsanam	tārkṣyāsane	tārkṣyāsanāni
Vocative	tārkṣyāsana	tārkṣyāsane	tārkṣyāsanāni
Accusative	tārkṣyāsanam	tārkṣyāsane	tārkṣyāsanāni
Instrumental	tārkṣyāsanena	tārkṣyāsanābhyām	tārkṣyāsanaiḥ
Dative	tārkṣyāsanāya	tārkṣyāsanābhyām	tārkṣyāsanebhyaḥ
Ablative	tārkṣyāsanāt	tārkṣyāsanābhyām	tārkṣyāsanebhyaḥ
Genitive	tārkṣyāsanasya	tārkṣyāsanayoḥ	tārkṣyāsanānām
Locative	tārkṣyāsane	tārkṣyāsanayoḥ	tārkṣyāsaneṣu

Compound tārkṣyāsana -

Adverb -tārkṣyāsanam -tārkṣyāsanāt