The tourists, Om Prakash (60) and Mahender Singh (35) were sleeping on the roof of the bus when the mishap occurred.
The two along with 46 others had chartered a bus from Jaipur district on September 18 and the group visited many places including the Madurai Meenakshi Temple before leaving for Mysore in Karnataka yesterday.
"By mistake, the tourists took the Chennimalai Road instead of taking the Mysore Highway from Erode and the accident occurred near KK Nagar underpass," P Shanmugam, Sub Inspector, Erode Taluk police told PTI.
