Coke: Use your preferred kind of coke in this recipe. For low carb, use coke zero or diet coke.
Chaat masala: This unique spice blend is hard to substitute. Look for it in an Indian grocery store or online. Alternatively, use an equal quantity of jaljeera powder/masala instead.
Black salt: If you cannot find this, substitute with half the quantity of Himalayan pink salt.
Serve Immediately: For the best taste and fizz, prepare this drink just before serving since the soda begins to lose its fizz after opening.
Note: The nutrition facts below are my estimates based on diet coke. If you are following any diet plan, I recommend cross-checking with your preferred nutrition calculator.