Heat oil in a pan add popu ingredients and fry, once done add curry leaves, bhindi pieces and stir-fry for a couple of mins on medium flame. Fry until the bhindi pieces are half cook, then add chopped onion and mix well.
Add turmeric powder and stir, cook on low-medium flame for 5 mins with cover, keep stirring in middle. Then add salt, red chilli powder and let it fry for another 3 mins without lid, till the curry is done. Now bhindi onion fry is ready, transfer into a serving bowl and serve hot with rice or roti.