Apply butter on bread slices, then spread green chutney.

Then arrange onion slices and cucumber slices.

Then spread butter and green chutney on second bread slice. Put this slice over the cucumber slices.

Then arrange boiled potato slices, sprinkle chaat masalo, then put tomato slices.

Then take third bread and spread butter and Coriander leaves. This way make third bread sandwich.

Then cut the sandwich in to two pieces. And serve vegetable sandwich with ketchup.