IPC Section 2
Punishment of offences within India.- Every person shall be liable to punishment under this code & not otherwise for every act or omission contrary to the provisions thereof, of which he shall be guilty within [India]
IPC section 3
IPC section 3 Punishment of offences committed beyond, but which by law may be tried within, India.- Any person liable by any [indian law] to be tried for an offence committed beyond [india] shall be dealt with according to the provisions of this code for any act committed beyond [india] in the same manner as if such act had been committed within [india]