Fairly simple build Imo.
Induction cooker to heat up the oil, thermocouple sensor to check the temp before we start printing the jalebis. (we could use a relay to control the induction cooker as well, but easier to just physically turn it on I think)
On top of the pot and induction cooker we fit a fluid extruder and it moves along 2 axis. It's important that the fluid extruder nozzle be metallic cuz of bubbling oil and splashing. Control the steppers using a simple arduino+RAMPS setup and we're golden.
No idea how to automatically have the fried jalebis moved into sugar syrup but for now the user can do that manually.