In a bowl, combine cream cheese, icing sugar, and thandai powder. Whip until creamy.
In another bowl, whip the whipping cream until soft peaks form.
Transfer the whipped cream in batches and fold it with the cream cheese mixture.
When the ingredients are well incorporated, transfer the cream cheese mixture into the prepared biscuit base.
Level and smooth the top.
Garnish with rose petals, almonds and pistachios.
Cover with cling film and refrigerate overnight.
Next day, remove the cake out of the tin, remove from base plate, transfer to a serving plate, slice the cheesecake and serve.