To prepare the batter, mix besan, spinach puree, curd, ginger-chili paste, turmeric, salt, and lemon juice in a bowl. Gradually add water to make a smooth, thick batter.
Now let the batter rest for 10–15 minutes to enhance fermentation and texture.
Then add eno, just before steaming, and mix gently, and immediately pour the batter into a greased steaming tray.
Now steam the Dhokla in a steamer or large covered pot for 15–20 minutes on medium flame, until a toothpick inserted comes out clean.
Allow the dhokla to cool and then cut it into square shape.
Then prepare the tempering. Heat oil in a small pan. Add mustard seeds, sesame seeds, hing, curry leaves, and green chilies. Sauté for a few seconds.
Pour the tempering evenly over the dhokla, serve warm with green or sweet tamarind chutney, and enjoy.