Add 2 tablespoons oil to the same pan. Lower the heat. Add cumin and ajwain. Let them sizzle 10 to 15 seconds. Do not let the ajwain burn.
Add the fine-chopped onions. Cook on medium heat 8 to 10 minutes, stirring, until they turn gold. Add garlic and chopped ginger. Cook 40 to 60 seconds until the raw smell goes.
Add the tomato puree. Cook 4 to 5 minutes until most of the moisture is gone and the masala looks thick.
Add Kashmiri chili, coriander, garam masala, and salt. Stir 2 to 3 minutes on low heat until the oil looks a little separated and the masala smells cooked, not dusty.
Pour in 1/2 cup water. Simmer 2 to 3 minutes until the masala is thick enough to coat a spoon.
Add the fried okra, kasuri methi, and amchur. Add 2 to 4 tablespoons more water if it looks dry. Mix gently.
Cover and cook on medium-low 4 to 5 minutes, until the okra is tender and the masala clings. It should be spoonable, not watery. Taste for salt. Turn off the heat.