As the size is big, you may have to go by that procedure. Other options would have been discussed by your doctor. If not, approach a doctor who is communicative and gets informed consent from the patients. Other options- lithotripsy procedure where d stone is blasted to pieces by sound waves,in this the pieces if they don't get drained it collect and form a stone. Another by open surgery which has more complications comparatively and stay in d hospital will also b long. But if you are thinking of Indian system of medicine, then approach a competent person for d treatment.