Cauvery Express or Kaveri Express ( Train No: 6222 / 6221 ) is a long distance train that links the capitals ( Bengaluru and Chennai ) of two south Indian States, Karnataka and Tamilnadu.
This No. 6222 express train starts from Chennai Central and terminates at Mysore in Karnataka (via Bangalore) . The down train No 6221 travels in the reverse direction. The pair operates daily. Usually the trains are packed, especially during the weekends .
So an advanced reservation is highly desirable, as the seat / berth availability is an issue if not reserved well in advance