Declension table of ?tatvakṣvas

Neuter	Singular	Dual	Plural
Nominative	tatvakṣvat	tatvakṣuṣī	tatvakṣvāṃsi
Vocative	tatvakṣvat	tatvakṣuṣī	tatvakṣvāṃsi
Accusative	tatvakṣvat	tatvakṣuṣī	tatvakṣvāṃsi
Instrumental	tatvakṣuṣā	tatvakṣvadbhyām	tatvakṣvadbhiḥ
Dative	tatvakṣuṣe	tatvakṣvadbhyām	tatvakṣvadbhyaḥ
Ablative	tatvakṣuṣaḥ	tatvakṣvadbhyām	tatvakṣvadbhyaḥ
Genitive	tatvakṣuṣaḥ	tatvakṣuṣoḥ	tatvakṣuṣām
Locative	tatvakṣuṣi	tatvakṣuṣoḥ	tatvakṣvatsu

Compound tatvakṣvat -

Adverb -tatvakṣvat