What cloud be the reason for this failure, can anyone plz guide me through

It tells you what the error is. It cannot find Docker.

Since this is Windows, you should try installing Docker Desktop first.

Not install docker install docker by sudo apt install docker.io ok then or either check docker endpoint in kubelet location and go to /etc/systemd/system/docker.service and check for docker.servicer or try sudo systemctl restart docker.service if docker is installed

Indeed not by installing the Linux version of docker. MINGW (gitbash) is not true Linux. It is an emulation and the commands it provides (ls, cat etc), are native Windows executables linked with Linux emulation DLLs.
Thus, not being true Linux, it does not have systemd service support.

Docker desktop and Minikube for Windows work well together.