Chapter XI which is the last chapter of the Indian Evidence Act has just one section. This chapter/section deals with Improper Admission and Rejection of Evidence.
167. No new trial for improper admission or rejection of evidence.
The improper admission or rejection of evidence shall not be ground of itself for a new trial or reversal of any decision in any case, if it shall appear to the Court before which such objection is raised that, independently of the evidence objected to and admitted, there was sufficient evidence to justify the decision, or that, if the rejected evidence had been received, it ought not to have varied the decision.
This is it. Indian Evidence Act is finished!