1. By Road:
   • Self-Driving: You can drive from Munnar to Bangalore, which is approximately 470 kilometers, via NH85 and NH44. The journey takes around 9-10 hours, depending on traffic and road conditions.
   • Bus: There are regular bus services from Munnar to Bangalore operated by both government and private bus companies. The bus journey takes around 10-12 hours, and you can choose from various options, including both day and overnight buses.
2. By Train:
   • There is no direct train connectivity between Munnar and Bangalore. The nearest railway station to Munnar is Aluva, which is about 110 kilometers away. From Aluva, you can take a taxi or a bus to Ernakulam Junction, which has better train connectivity. From Ernakulam Junction, you can board a train to Bangalore.
3. By Air:
   • The nearest airport to Munnar is Cochin International Airport, which is approximately 110 kilometers away. From Munnar, you can travel to the airport and then take a flight to Bangalore. Several airlines operate flights between Cochin and Bangalore, making it a convenient option for air travel.

Please note that these travel options are based on the information available up until September 2021. It is always recommended to check for the latest travel updates and availability of transportation services before planning your trip.