These are just the basic ingredients. You can go creative with yogurt, pomegranates, sprouted green dal, grapes, muri (puffed rice) etc. Aloo chat is very healthy with lot of vitamins, energy giving healthy carbs, protein and vitamin C.
Note: I have tried to eat aloo chat at home, even ate it but it's not the same. You need to eat aloo chat with friends, family and loved ones for fun and happy eating experience. However, if you are not privileged you should still eat it just for the simple fact that aloo chat is healthy and is never a burden on the stomach.