Declension table of ?tādavasthya

Neuter	Singular	Dual	Plural
Nominative	tādavasthyam	tādavasthye	tādavasthyāni
Vocative	tādavasthya	tādavasthye	tādavasthyāni
Accusative	tādavasthyam	tādavasthye	tādavasthyāni
Instrumental	tādavasthyena	tādavasthyābhyām	tādavasthyaiḥ
Dative	tādavasthyāya	tādavasthyābhyām	tādavasthyebhyaḥ
Ablative	tādavasthyāt	tādavasthyābhyām	tādavasthyebhyaḥ
Genitive	tādavasthyasya	tādavasthyayoḥ	tādavasthyānām
Locative	tādavasthye	tādavasthyayoḥ	tādavasthyeṣu

Compound tādavasthya -

Adverb -tādavasthyam -tādavasthyāt