Prepare Custard with 2 cups of hot milk, following the instructions on the Custard Powder Pack. OR you can try Jello vanilla pudding mix to prepare the custard.
Soak gelatin in hot water. When gelatin melts in water, add it to custard mixture.
Add condensed milk to custard mixture and mix well.
When the mixture cools down, add mango pulp. If using fresh mango pulp, taste the custard mixture for sweetness. Add some condensed milk if it is not sweet enough for your taste.
Pour this mixture in the pie pan and refrigerate for at least 1 hour until it is set.
Decorate the pie with some whipped cream. Refrigerate until ready to serve.
I had some leftover custard mixture after preparing the pie. I poured it in a dessert bowl and chilled it.