Hi Prabhu
G/L account determination key role, but for reporting you can adopt following strategy
BSEG will give you account number but you have consider what transaction event key you want to use e.g. movement 101 you want inventory account you have consider BSX key.. but you want GR/IR account then you consider WRX key .and MSEG will give movement types and other details..
Now to get G/L short text.. you have to pass G/L account to SKA1 but .. it may be possible that maintain in many controlling areas.. to get company code from plant that you find in MSEG ... then find controlling area from company code .. pass controlling area and G/L account to SKA1 to find out short text..
But what accounts you need depends upon movement type, material type, plant, transaction event key etc ..if you want to consider only inventory accounts then it may be easy just use BSX.. so need to be very specific..