It said the two , after robbing the passengers , burnt them alive by sprinkling the bus with petrol and setting it on fire in the southern state of Andhra Pradesh in 1993 .
<response> It said the two , after robbing the passengers , burnt them alive by sprinkling the bus with petrol and setting it on fire in the southern state of <location>Andhra Pradesh</location> in 1993 . </response>