Declension table of ?upasthātavya

Masculine	Singular	Dual	Plural
Nominative	upasthātavyaḥ	upasthātavyau	upasthātavyāḥ
Vocative	upasthātavya	upasthātavyau	upasthātavyāḥ
Accusative	upasthātavyam	upasthātavyau	upasthātavyān
Instrumental	upasthātavyena	upasthātavyābhyām	upasthātavyaiḥ upasthātavyebhiḥ
Dative	upasthātavyāya	upasthātavyābhyām	upasthātavyebhyaḥ
Ablative	upasthātavyāt	upasthātavyābhyām	upasthātavyebhyaḥ
Genitive	upasthātavyasya	upasthātavyayoḥ	upasthātavyānām
Locative	upasthātavye	upasthātavyayoḥ	upasthātavyeṣu

Compound upasthātavya -

Adverb -upasthātavyam -upasthātavyāt