Boil or steam the beetroot and potatoes till they are tender.

Once cooled, thinly slice the beetroot and slice the potatoes.

Peel and thinly slice onion and cucumber. 

Thinly slice the tomatoes as well.

Trim the edges of the bread slices if you want.Use brown or white bread as you want.

Place all the veggie slices one by one.Sprinkle the black salt and chaat masala on each one of them or alternately.

Cover the sandwich with the other bread slices.Slice into triangles and rectangles.

Serve bombay vegetable sandwich immediately with tomato ketchup and the coriander chutney.