Oh Great so someone replied, but I did not check the forum as I lost hope that any one is interested to reply.

Thanks Jal for the answer, but meanwhile based on ur theory I have placed the cabinet similar to ur placement.

Cabinet is in SE of the room, I sit facing NE
The CPU is placed IN SE, the only problem I have is that the entrance  door is behind me & behind the entrance is the corridor wall, is that ok? or should I place the cabinet to north wall & then place the monitor in NE so I can face NE or North while working.

below is the image of present east facing setup


& this one can be north facing


Which one is better or best out of the two.
Thanks for all ur guidance.

you should place computer table in the north east corner of the room. if you are a student and want to use computer more for your studies, the computer should be kept is such a way that you face east while doing computer. Facing north is also good direction

Thanks PKJ,
Its my main computer & source of earning as I work online using internet.
I have kept it as per my 1st diagram & things are working fine.................I face NE while working........best of the both worlds.

hi vastuwala !

All electric equipments viz, tv, gyser, computer etc are preferable at south - east of the house/room.  It relates to fire and the best position for kitchen is also south-east of the house

You should place the table on to the north side so while working your face should be towards north. There should not be window or door behind a person while working. In your other option, you have a door behind you. So the first option is the best.