Heat oil in pan add soda bi-carb,peas and green chillies, saute on medium to low flame for 3-4 minutes. Now remove from pan and keep aside to cool.

After cooling peas add 1 tbs mayonnaise, green chilli sauce, pepper powder and pinch salt and mix well.

Spread butter on every slice of bread slice, put peas mixture on 1 bread slice cover with another slice.

Now spread mayonnaise on upper side put cucumber slice and cover with another bread slice. Assemble another sandwich with same method.