Honda 2 Wheelers India — Honda dio 2020 mileage issues

On (14/01/2021) I purchased a honda dio motor vehicle from balu honda dealer in thanjavur. (model bs 6 and regulations numer tn49cc5442) . Unfortunately, the vehicle has not been satisfactory because of mileage complaints. When i was first service i told to them clearly only giving 39km per liter. Service department agree to fix this problem under free service, however when i collected the vechile and started to using it again, problems was still there. Again we rise complaints they agree to fix second service, however second service finish and i use the vehicle, problem was still there. Today again we went there raise same complaint (15/06/2021) now they are saying vechile give only 45km miles per one ltr. (i said only 39km gives per ltr with proof). They told us we will try to fix next service, To give irresponsible answers and handling poor customer service .(While taking vechile they said 55km to 60km will give per liter.)

I would appreciate it if you could organise to the dealer to change the engine or either to fix the problem permanently. As I am sure you can appreciate, I rely on my vehicle for transport and apart from the inconvenience, this problem has also caused me to incur additional cost. Really we fedup this things mentaly.

Here i have attached the reference documents.