Take 2 leftover rotlas and break them into medium-sized pieces in a mixing bowl.
Add ½ tsp turmeric powder, 1 tsp red chili powder, 1 tsp coriander powder, ½ tsp cumin powder, ½ tsp garam masala, and 1 tbsp oil. Mix well so that the rotla pieces are coated evenly with all the spices. Keep it aside.
In a mortar and pestle, add 8–10 garlic cloves, 2 green chilies, 1 tsp cumin seeds, and a pinch of salt. Crush them together.
Add 1 tbsp red chili powder and 2 tbsp coriander powder to the crushed mixture. Crush it further.
Add 1 tbsp curd and ¼ cup water to the mixture. Mix well. The garlic chutney is ready.
For tempering the rotla: Heat 3 tbsp oil in a kadai. Add ½ tsp mustard seeds, 1 tsp cumin seeds, 1 tbsp sesame seeds, and some curry leaves. Sauté them.
Add 1 cup of the white part of chopped onions and sauté until translucent.
Add the Kathiyawadi garlic chutney and sauté it.
Add the green part of the chopped onions and sauté briefly.
Add the rotla pieces to the kadai and mix well.
In a mixing bowl, whisk together 1 cup of curd and 1 cup of water.
Pour the curd mixture into the kadai and mix well.
When the mixture begins to boil, cover it and let it cook on low flame for 5–7 minutes.
Kathiyawadi Vagharelo Rotlo is ready. Garnish with fresh coriander leaves.
Serve the Vagharelo Rotlo hot with masala chaas and papad.