Heat 2tsp oil in a pan; add the tempering ingredients and once the seeds start to splutter; add ginger, green chilies & curry leaves and sauté for couple of minutes.
Then add the green veggies; cover and cook on medium-low flame for 5-8 minutes or until almost wilted.
In the meantime, de-frost frozen suran in the microwave.
Once the greens are ready, add the suran and ¼ cup of water; cover and cook till suran is completely cooked. I like this dish smooth instead of chunky, so I mash suran with the back of the spoon at this stage. Then add tamarind paste and salt. Cook for another 5 minutes. Serve with steamed rice for a yummy Andhra meal.