To make khati mithi gujarati kadhi....mix curd and gram flour and water properly. There should be no lumps. Add salt, jeggery and keep it to boil. Add tempring. For that take ghee in tadka pan. Add mustard seeds, methi seeds, jeera. As soon as it gets crackle, add asophotida. Add curry leaves, green chilli and ginger. Let it boil properly.