If you manage to locate a PDF claiming to contain the 144 techniques, it will likely fall into one of three categories:
If you are researching the PDF, you likely want to know what is inside. While the full list is guarded, historical texts (such as the Kriya Yoga Rahasya and Purana Purusha journals) outline the following structure:
Again, this is not traditional Kriya Yoga but a modern combinatorial exercise.