Wash and soak green moong dal for 3-4 hours in slightly hot water.
Then remove soaked dal water and add dal into mixer jar with ginger and garlic cloves. Without adding water grind it into a smooth and thick paste.
Add grinded paste into mixing bowl, grated dudhi (lauki), grated carrot, chopped green chili, coriander leaves, turmeric powder, salt to taste, garam masala, chaat masala, sugar, and oil. Mix well.
Now add rava and gram flour (besan) to it. mix well.
Cover and rest the batter for 15 minutes.
Add eno fruit salt & mix in one direction.
In a kadai, add oil, mustard seeds, sesame seeds, curry leaves, dry red chili and a pinch of hing. Sauté it.
Pour handva batter in the centre of kadai. Cover and cook handvo for 12-15 minutes on low-medium flame.
Flip another side and cook handvo for 5-7 minutes till it becomes crispy from both sides.
Same way make hadvo into the pan.
Cut into the desired shape. Serve with crispy handvo with green chutney.