State Express Transport Corporation of Tamilnadu Government operates premium class Non AC variant Interstate Bus Service between Salem and Ernakulam. The bus service operates through Coimbatore, Palakkad Thrissur and reaches its final destination Eranakulam otherwise known as Kochi or Cochin.
The bus schedule is operated from Salem Bus Stand under the Salem Division of State Express Transport Corporation. The vehicle used for the service is a Ashok Leyland manufactured bus with Ultra Deluxe chassis along with Pushback seats and Air Suspensioned Chassis for travel comfort.
Every bus service is route numbered depend upon the route it travels, SETC have route numbered as 729 UD ( UD stands for Ultra Deluxe service a Non AC with pushback seats and air suspension chassis) .
At present route number 729 UD operates 6 schedules on a daily basis from Salem to Ernakulam. The service is via Coimbatore, Palakkad, Thrissur Interstate Route. 
The time taken for the travel is 9 hours covering the 371 kilometers to reach the destination at Ernakulam KSRTC bus stand from Origin Salem Bus Stand. The time and distance traveled may vary due to traffic and road conditions.
The fare of the schedule is fixed at Rs.407 per adult passenger excluding the reservation and taxes as applicable. The passengers can book their seats in advance by visiting www.tnstc.in or by visiting nearest SETC computerised ticketing counter.
