Procedure:

1.Soak rice for one hour.
2.Grind soaked rice, water melon pieces, fresh coconut into finely.
3.Transfer to another vessel and add salt.
4.The batter will be little waterly.
5.Heat the pan and pour or sprinkle the dosa batter with hand  on a hot pan.
6.Pour 1 tsp  of oil from the edges.
7.Let the dosa cook and fry for 2 minutes.
8.And slowly turn to other side and let it cook

Crispy Watremelon dosa is ready.