Section 87: Secondary Evidence.

Secondary evidence includes-
a certified copies given under the provisions hereafter contained in this Act;
b copies made from the original by mechanical or electronic processes, which in themselves ensure the accuracy of the copy, and copies compared with such copies;
c copies made from or compared with the original;
d counterparts of documents as against the parties who did not execute them; and
e oral accounts of the contents of a documents given by some person who has himself seen it.