We boarded the train from Bangalore and then hired a cab from Cochin which was easy for us. Taxi driver was cooperative and took us to almost all good places. We spent some time in Moovatupuzha as well. Journey was not tiresome and enjoyed every bit of it.
Bangalore Express starts from Kanykumari and it has limited stops in which the trip doesn't seems boring. I was travelling in 2nd Ac and the coach was very neat and was in good condition. Surprisingly the toilet was very tidy and the caterers provided food at the proper time and the blankets provided were also very neat.
We travelled in sleeper class with friends. we went to friends marriage in Cochin. It was a amazing experience. Natural air, morning was so pleasant with fresh air of Kerala. It was raining so had a amazing experience in train. I loved it. Best way to travel from Bangalore. Overall, good experience.