Declension table of ?yantrya

Neuter	Singular	Dual	Plural
Nominative	yantryam	yantrye	yantryāṇi
Vocative	yantrya	yantrye	yantryāṇi
Accusative	yantryam	yantrye	yantryāṇi
Instrumental	yantryeṇa	yantryābhyām	yantryaiḥ
Dative	yantryāya	yantryābhyām	yantryebhyaḥ
Ablative	yantryāt	yantryābhyām	yantryebhyaḥ
Genitive	yantryasya	yantryayoḥ	yantryāṇām
Locative	yantrye	yantryayoḥ	yantryeṣu

Compound yantrya -

Adverb -yantryam -yantryāt