Since August 2020, the old KTMB Online Ticketing system (ktmb.com.my) was migrated to a new one, named KTMB Integrated Ticketing System (KITS).
Official booking website:
How to book ETS train ticket online via KTMB Integrated Ticketing System (KITS)?
Step 1: Visit the website https://online.ktmb.com.my/
Step 2: Register for new user / Login for existing user
Step 3: Search for ETS train by selecting the Origin and Destination, Departure and Return date, number of people traveling and click “Search”
Step 4: Select ETS train based on your schedule (date and time)
Step 5: Choose your preferred seat and click “Confirm seats”
Step 6: Fill up Passenger(s) details and proceed to payment.