In bowl mix flour, egg, salt and butter oil mix well and keep aside
Now in bowl add warm milk and sugar and yeast and rest 10 mins and when it foam and rise high pour into flour mixture and mix well
Knead well and its like sticky and rest for 1 hour
When its rise after an hour divide into two and in one half divide into 1/4 refer pic
Now in one 1/4 of dough add green and knead well and keep aside
In large portion add red color and add raisins and mix well and knead well
Now make red dough loaf safe before that knead well and shape it
Now in plain color dough roll with pin in large sheet keep red color dough which we already shaped like dough and roll with cover
Now again roll green color and keep the plain cover dough. refer pic( if you have doubt before step ref this pic which i tried to say )
Now cover with all sides an keep in loaf pan . rest for 2 hours
Now preheat oven and apply milk on top of dough and bake for 40 mins
Allow to cool and cut bread slices and serve it. Watermelon bread ready