Le Meridien is located about 38km from the airport. There are prepaid taxis available at the airport (costing around Rs. 1000). There are taxi booking counters at both the domestic and international terminals. You can also contact them at +91 484 2610115 (Extn: 2242).
You can also book cabs using Uber or Ola Cabs apps in Kochi.
Buses are available to Kochi from the airport. Buses to Ernakulam, Vyttila or Fort Kochi will take you to Vyttila, which is about 4km from the hotel. From here, you can take a taxi or an auto-rickshaw to the hotel.
Kochi has two main train stations - Ernakulam Town (also called Ernakulam North), which is 10km from the venue, and Ernakulam Junction (or Ernakulam South), which is about 8km away. You can travel by prepaid taxi or auto rickshaw from either station.
If you're traveling by bus to Kochi, most buses will take you to Vyttila Hub, which is about 4km from the venue. You can take a taxi or an auto rickshaw from here.