Declension table of ?upayaṣṭri

Masculine	Singular	Dual	Plural
Nominative	upayaṣṭriḥ	upayaṣṭrī	upayaṣṭrayaḥ
Vocative	upayaṣṭre	upayaṣṭrī	upayaṣṭrayaḥ
Accusative	upayaṣṭrim	upayaṣṭrī	upayaṣṭrīn
Instrumental	upayaṣṭriṇā	upayaṣṭribhyām	upayaṣṭribhiḥ
Dative	upayaṣṭraye	upayaṣṭribhyām	upayaṣṭribhyaḥ
Ablative	upayaṣṭreḥ	upayaṣṭribhyām	upayaṣṭribhyaḥ
Genitive	upayaṣṭreḥ	upayaṣṭryoḥ	upayaṣṭrīṇām
Locative	upayaṣṭrau	upayaṣṭryoḥ	upayaṣṭriṣu

Compound upayaṣṭri -

Adverb -upayaṣṭri