Mince green chillies, coriander leaves, salt and water in a mixture to make green chutney.
Mash potatoes and peas together in a bowl.
Add salt, garam masala powder, turmeric powder, lemon juice & sugar to potato-peas stuffing. Mix well.
Trim brown edge crusts of the bread slices with knife.
Apply butter to one side of the bread slices.
Take one buttered bread slices. Spread little chutney on top of butter.
Put stuff, add cheese and cover with another slice.
Press well and cut into four square pieces with sharp knife.
Dot with tomato ketchup and serve. You can even grill the sandwich.