Making grilled sandwich
Boil the potatoes. They should not be cooked too much or fall apart. Just cooked well till soft. Peel and slice them.

Rinse, peel and slice the onion, tomatoes and cucumber in thin rounds.

Butter all the bread slices. The butter has to be spread evenly and generously so that the bread does not become soggy on spreading the chutney. Spread some green chutney on the slices.

Place a few slices of potatoes and then sprinkle with roasted cumin powder and chaat masala powder.

Then place 2 to 3 cucumber, tomato and onion slices. Sprinkle roasted cumin powder, chaat masala powder and black salt.
Cover the sandwiches with the remaining slices of bread.

Spread butter on the top of slices.
In a pre heated grill, place the sandwich carefully with the buttered side facing at the bottom. Be careful when doing this. Now spread butter on the top side facing you.

Close the grill and grill the sandwiches for 2-3 minutes or till crisp and golden.
Remove the grilled sandwiches with a wooden spatula. Cut them into half and serve.