Wash and pat dry the ivy gourds. They have to be dry before you begin chopping them. Similarly, peel and keep the potatoes submerged in water with salt.
Once Tindora/tendli/Kundru/ivy gourd turns dry, chop the top and bottom part. Slice it evenly into long fingers.I chop each of them into 4 pieces.
Next, chop the potatoes in fingers and let it submerged in water until we are ready to shallow fry them.
Heat oil in a thick bottom pan. Once hot add potato fingers. Stir it, cover and cook on low flame. After few minutes, add salt and then the potatoes upside down.
Cover again and keep cooking on low flame till they are done. Check by inserting a knife. Once done remove on plate, keep aside.
In the same pan add chopped Tindora. Initially cook it on high flame for a few minutes and after that lower the flame, add salt, cover and cook until it turns tender. You will see the light brown spots on Ivy Gourd.
Drain oil with slotted spoon and now mix kundru and potatoes together in a pan. On a slow flame add coriander powder, turmeric powder, red chilli powder and mix gently. In the last add chat masala or Amchur powder.
Saute for a minute and switch off the flame. Serve the Tindora alu with hot chapati, phulkas, paratha, Methi thepala/Fenugreek flatbread or with dal-rice.