Heat oil in a large saucepan over medium heat. Saute onion, garlic, ginger, and green chile pepper in hot oil until onions are translucent, about 10 minutes.

Season onion mixture with cumin, paprika, coriander, garam masala, turmeric, and cayenne pepper; stir. Cook onion with spices until fragrant, 1 to 2 minutes. Add tomatoes, chickpeas, and tomato sauce; stir and simmer until the tomatoes soften, about 5 minutes.

Stir yogurt into the mixture until the color of the mixture is even; simmer until again hot, about 5 minutes more. Remove pan from heat; stir lemon juice and salt into the mixture.