Moongre

 From a distance, these look like green beans.

They aren't.

 Up close, they are skinnier than beans and have a radish flavor.
I had no idea what they were and so had to do some research.

Looking up green bean that tastes like radish did little good.  But when I finally had the Hindi name, moongre, I found what I wanted to know:  they are radish seed pods.

What does a person do with radish seed pods?  Well, there aren't a lot of recipes.  The choices seem to be to eat them raw or make moongre alou ki subzi.
Which I did.
Not bad.  But I'll probably pay better attention next time so that the vegetable man brings me beans and not moongre.