This vegetable is known as शरणी (Sherni in the Marathi language).

My maid enhances my knowledge by saying that it is acetic in taste. Maharashtrians cut it into small pieces, add salt, and dry it for one whole day under the Sun. The next day they fry it in hot oil and have it with Khichdi (A dish in South Asian cuisine made of rice & lentils). Very tasty.

She also said that it is broken via fist at the entrance of the house on Diwali (festival of lights) day and is considered auspicious.

Knowledge enhanced. Thanks to the maid.