Section 84 of Evidence Act "Presumption as to collections of laws and reports of decisions"
The Court shall presume the genuineness of every book
purporting to be printed or published under the authority of
the Government of nay country, and to contain any of the
laws of that country.
and of every book purporting to contain reports of decisions
of the courts of such country.
The Court shall presume that every document purporting to be a power-of- attorney, and to have been executed before, and authenticated by, a notary public, or any Court, Judge, Magistrate, [Indian] Consul or Vice- Consul, or representative of the [Central Government], was so executed and authenticated.