Update
– I checked continuity of the fuse and it failed. So it is blown. So need to wait till I get a new fuse.
In the mean time I understood your diagram. I will work on it once the new fuse arrives. One note that I had to place the V on negative and A on positive for it to read the voltage properly.

Thanks a ton for your help till now. Sorry but will bother you once I get the fuse. Need to complete the project.