What is the meaning for wagon R DUO.I want meaning for wagon, R and DUO

The legacy of Wagon R comes from Japan, where they were used as wagons to carry milk cans. In India, it was redesigned and called a Wagon R. R stands for recreation.

The concept of Duo comes from the fact that the Duo variants run both on LPG and petrol.

Essentially ' Wagon R' is the name of the model car produced by Suzuki all over the world & Duo is the variant that runs on dual fuel-petrol & LPG gas. And hence the variant name DUO.
Again in the duo u have an Lxi & the Lx variants based on what they come with or without. Things like the power steering & colored bumpers etc.

The design of the vehicle was due to the maximisation of internal cabin space from the inside & at the same time minimisation of the area or space the entire vehicle occupied on the outside & hence the railway goods wagon like look which explains the name.