Declension table of yantraka

Masculine	Singular	Dual	Plural
Nominative	yantrakaḥ	yantrakau	yantrakāḥ
Vocative	yantraka	yantrakau	yantrakāḥ
Accusative	yantrakam	yantrakau	yantrakān
Instrumental	yantrakeṇa	yantrakābhyām	yantrakaiḥ yantrakebhiḥ
Dative	yantrakāya	yantrakābhyām	yantrakebhyaḥ
Ablative	yantrakāt	yantrakābhyām	yantrakebhyaḥ
Genitive	yantrakasya	yantrakayoḥ	yantrakāṇām
Locative	yantrake	yantrakayoḥ	yantrakeṣu

Compound yantraka -

Adverb -yantrakam -yantrakāt