hi,

see the salary structure for any type of job depends on the nature of work, persons experience and depends on the organization . its quite normal that generally the largest organization pays better than small organization. however also it depends on the years of experience which has vital role and have effects on your career growth.

now coming to the anesthesis and operation theater technician or assistant role which is quite demanding since for any type of operation generally anesthesia is needed. however dialysis is needed for kindly diseases and quite common in india. however salary structure would be quite same, but according to the maximum possibility of demands I would prefer to anesthesia and operation theater course.