Leucocasia gigantea ?

Leucocasia gigantea (Blume) Schott, Oesterr. Bot. Wochenbl. 7: 34 (1857) (syn: Arisaema fouyou H.Lév. ; Caladium giganteum Blume; Colocasia gigantea (Blume) Hook.f.; Colocasia prunipes K.Koch & C.D.Bouché);
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S. China to W. Malesia: Bangladesh, Borneo, Cambodia, China South-Central, China Southeast, Jawa, Laos, Lesser Sunda Is., Malaya, Myanmar, Sumatera, Thailand, Vietnam as per POWO;
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SK988 20 FEB-2018 : 12 posts by 5 authors. Attachments (1)

Location:  Biratnager , Nepal
Date: 8 May 2013 
Elevation : 2350 ft.
Habit : Cultivated
Unfortunately this is the only image.

This is Calla lily

Aglonema commutatum. I think the spelling is not correct.

I think does not match with any of the species suggested

Not Calla lily. Kindly post pictures of leaves as well.

Looks like Aglaonema commutatum Schott as suggested by… No more image please

Does not look like images at Aglaonema commutatum Schott 
Pl. check with images at Alocasia macrorrhizos (L.) G.Don
To me appears close.

Doubtful ID

You may be right …!

Alocasia macrorrhizos (L.) G.Don
Syn: Alocasia macrorrhiza Schott
Nepali Names : घ्याम्पे तरुल Ghyaampe Tarul / जाँते तरुल Jaante Tarul
Wanted to know if leaf seen alongside belongs to the same plant, if so it can’t be Alocasia.
Aglaonema does not have a distinct lower spathal tube…
I suspect that this is Leucocasia gigantea (formerly Colocasia gigantea)