Kerala State Road Transport Corporation is operating bus services from Alappuzha to Munnar and vice versa. There are buses starting from Alappuzha and few are passing through services. Detailed timings are available in Aanavandi, Click here
Online reservation will be available soon @ KSRTC Online & KURTC Online websites
The journey will take around 6-7 hours and goes via Ernakulam, Aluva, Perumbavoor, Kothamangalam & Adimaly.