Dear Mr Krishna,
Sorry to hear about your grandmother.
Unfortunately pancreatic cancer is a bad disease, especially if it has spread to the liver
. Current focus of treatment is to give her good quality of life for her remaining life (typically 3-6 months). Chemotherapy
rarely produces good response in these cases and is associated with lot of side effects, especially at this age.
Keeping these in mind I would just recommend supportive care for her. You can certainly proceed with alternative treatment but we are no experts on those.