Peel the boiled potatoes and crumble them.

Heat 2 tsp oil in a pan. When the oil is heated well splutter mustard seed first. After this add curry leaves, finely chopped green chilli and saute for a while.

Now to the roasted masala and coriander powder and turmeric powder. Saute the spiced for a while add tomato, onion and crumble potatoes to the masala and mix nicely. Then add mango powder, garam masala, red chilli powder, and 1/2 tsp salt and mix everything really well.

Take a pressure cooker or a vessel and heat 2 cups of water in it. Grease each mold on the idli stand.

Mix some salt to the idli batter and mix nicely.

Now pour some idli batter on each mold and place a stuffing over it. Press it downward very gently and cover up the stuffing with some more idli batter. Likewise, fill all the mold on the idli stand.

Arrange the mold on the idli stand. When the water starts simmering, place the idli stand inside the vessels. Cover the vessels well and now steam. After this check the idlis.

After 12 minutes, check the idlis now. Idli is done and ready, turn off the flame. Take out the idli stand from the vessels and separate out the molds. Let them cool down a little.

When the idlis cool down a little, separate them out from the mold with running a knife around them and place the idlis on a plate.

Masala stuffed idli is ready. Serve these stuffed idli with green coriander chutney, coconut chutney, peanut chutney, or any chutney as per your taste and preference.