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If you are coming from sungai besi highway .. u need to take the highway that leads you infront of muzeum ...... if you go straight all the way u will pass the old pusat sains negara on your left ... further infront on your left there is a turning to PM house .... keep straight .... few meters infront you will notice that the road separates into two ... if you go straight u will end up near parlimen .... instead take a left turn down ....... go straight and u will see another turning to your left .... avoid this and take the second left ...just before the flyover ..... then keep on the fast lane ...as you pass the pedestrain bridge you will be able to see the HP tower on your right .... Its in Jalan Dungun ... so just keep far right all the way .... after that it should be easy
good luck