Peel the pineapple and cut it into rings n make hole in the centre of it.
In a blender jar, mix together paneer, fresh cream, sugar till becomes smooth. Add the Harshey's strawberry syrup and cardamom and blend it again.
Using knife cut the Pistachio and almonds into flakes n wash the rose petals.
Arrange the pineapple rings on a platter. Over each pineapple, spread the paneer strawberry mix in an even layer using a spatula or fingers to smoothen it all over the pineapple. Keep it the fridge for 20 mins to set a little bit. Now add the garnish
Keeping pineapple slices for long may turn them bitter so if you want to keep Pineapple Sandesh for long(5-6 hrs) then it’s better to dip pineapple’s slices in cooked sugar syrup(chashni) for 20 mins before making the dessert.