Fry whole spices such as Cumin seeds etc. Then fry those pieces of potatoes. Add cheese/mayonnaise and then salt, paper etc. Totally upto you how you want it to taste like.
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Finally, put some "papad" or "bhujiya" for added texture. Also may use fresh leafy vegetables and/or spices like Coriander leaves etc. That should do it. Enjoy and share your feedbacks.