Preparing authentic Indian curry is very easy as long as you know what to do. You can look on the Internet all you want, you’ll find lots of conflicting stories and recipes. Making curry depends really on where you’re from in India, and this curry is a typical base for Rajasthani Curry.
I provided some photographs of the ingredients which are pretty self-explanatory. The first step is to toast the spices, add the onion and then the tomato and the spices come next. There are no cumin seeds see you do not need to toast them in advance in the oil which would normally be the case.