Step 1

In a medium bowl, use a potato masher or fork to mash the beans until the mixture is chunky but with a few beans left whole.

Step 2

Add the mayonnaise, kala namak, turmeric and pepper and stir until well combined. Fold in the carrot, celery and onion, and taste, adding more mayonnaise, kala namak and/or pepper if needed.

Step 3

To build the sandwiches, spread mayonnaise on all the bread slices, if desired. Spread about 1/2 cup of the chickpea mixture on the bottom slice, top with lettuce, tomato and the remaining bread slices.