spiny gourd / spine gourd vegetable

Picked this up at some Indian grocery shop and found out that it was another variant of bittermelon so I had to try it.

The appearance looked more like a berry or conker so who would have guessed it was a vegetable and its relation to a bittermelon.

These are good stir fried with onions and tomato with some spices just like bittermelon or okra and the seeds inside are crunchy and can be eaten.