Declension table of ?vimānayāna

Neuter	Singular	Dual	Plural
Nominative	vimānayānam	vimānayāne	vimānayānāni
Vocative	vimānayāna	vimānayāne	vimānayānāni
Accusative	vimānayānam	vimānayāne	vimānayānāni
Instrumental	vimānayānena	vimānayānābhyām	vimānayānaiḥ
Dative	vimānayānāya	vimānayānābhyām	vimānayānebhyaḥ
Ablative	vimānayānāt	vimānayānābhyām	vimānayānebhyaḥ
Genitive	vimānayānasya	vimānayānayoḥ	vimānayānānām
Locative	vimānayāne	vimānayānayoḥ	vimānayāneṣu

Compound vimānayāna -

Adverb -vimānayānam -vimānayānāt