Take 100 grm or 5 arbi na paan, cut into two parts. Roll it tightly and cut it into thin strips. 2 cup chopped arbi na paan is formed.
Then in a mixing bowl, add ½ cup water and 2 tbsp oil. Whisk it and white mixture is formed which helps to make patra soft.
Now add ½ tsp turmeric powder, salt, 1 tbsp red chilli powder, 1 tbsp coriander powder, pinch of hing, 1 tsp ajwain, ½ tsp garam masala, 2 tbsp white sesame seeds, 2 tbsp green chilli-ginger-garlic paste, 2 tbsp tamarind pulp and 2 tbsp jaggery. Mix well.
Then add 2 cup besan gradually and mix well. Medium thick batter ready. also whisk batter for 2-3 minutes so it become light and fluffy.
Then add chopped arbi na pan into batter and mix well.
Now grease bowl with oil and add batter into it.
Preheat steamer and place bowl in it. steam patra on high flame for 12-15 minutes.
Patra is properly steam then take out and cool down. Then cut it into medium thick pieces.
For patra tempering, In a pan, heat 3 tbsp oil. Add 1 tsp mustard seeds, 2 tbsp sesame seeds, a pinch of hing, some curry leaves, and 2 chopped green chillies. Sauté briefly.
Add ¼ tsp turmeric powder and mix well.
In a bowl, add ¼ cup water and 2 tbsp sugar and 1 tbsp lemon juice. Mix well and Pour in the sugar-lemon mixture into tempering.
When the mixture starts boiling, add the cut Patra pieces and coat them well.
Lower the flame and simmer for 5 minutes.
Switch off the flame. Garnish with coriander leaves and Serve hot.