Declension table of ?rathayoga

Masculine	Singular	Dual	Plural
Nominative	rathayogaḥ	rathayogau	rathayogāḥ
Vocative	rathayoga	rathayogau	rathayogāḥ
Accusative	rathayogam	rathayogau	rathayogān
Instrumental	rathayogena	rathayogābhyām	rathayogaiḥ rathayogebhiḥ
Dative	rathayogāya	rathayogābhyām	rathayogebhyaḥ
Ablative	rathayogāt	rathayogābhyām	rathayogebhyaḥ
Genitive	rathayogasya	rathayogayoḥ	rathayogānām
Locative	rathayoge	rathayogayoḥ	rathayogeṣu

Compound rathayoga -

Adverb -rathayogam -rathayogāt