In a pan, mix sugar, gelatin and water

Boil till gelatin and sugar dissolve

Remove from fire

Add mango pulp, lemon juice

Mix it well, set in refrigerator for 1 hour

Beat egg whites

Mix it with the set mixture, Add all the remaining ingredients except the pie crust

Place the pie crust in a pan

Pour the mixture over it

Set it for another 3 hours in the refrigerator

serve after garnishing with mango slices