In a small bowl, add the gelatin. Pour over the boiling water and dissolve the gelatin well. Keep it aside for 3-4 minutes. Meanwhile, prepare the filling.
In a food processor, mix the cottage cheese, hung curd and condensed milk, till they're well combined. It will be a smooth, slightly runny mixture.
Transfer this mixture to a large bowl and add the gelatin mixture. Mix well.
Lastly, add the lemon juice.
Pour the cheesecake mixture on top of the biscuit crust, and refrigerate for 8 hours, or preferably overnight.