All over the world the surgical results are disapointing, only T1a (100% cure), T1b and T2 (60% cure) have real survival posibilities. All the rest are rarely cured. So survival is possible if cancer was not suspected and very rare if it was suspected.
The incidence of gallbladder cancer parallels the prevalence of gall stone disease; large and long-standing gall stones being associated with a higher risk of gallbladder cancer. Gall stone disease is common in north India and occurs at a younger age than in the western populations. Moreover, patients with gall stone disease present for treatment a long time after the onset of symptoms. Both these factors result in prolonged exposure of the gallbladder to stones. Besides gall stone disease, various other factors may also play a role in the causation of gallbladder cancer which is an (north) Indian disease.
It is nice to have such information from you. But the scenario of India is quite different than the west. The gall cancer is 90% associated with gall stone but it is less (20%) with the reverse association?