First make batter of besan by adding salt and veggie.Now boil potatoes,peel and mash add chaat masala,garam masala and salt.

Take a pan add little oil add potatoes stuffing in it and cook for 3-3minutes.Take bread slices in a pan put besan batter on one side and spread oil and turn and put batter on other side and cook.

Now place the bread slices in plate add in middle potato stuffing,cucumber,tomato sprinkle littoe salt and close it with bread slice and enjoy.