Thanks for your reply
@Mr.Vincent,
Your right we can use annular pad,but annular only in circle can't do square,rectangular and oblong pads,because of required to mention first in indication and oblong pads are need in single layer board.
The annular can make very smaller board but in larger single side board is can take too much of time.
@Mr.Kbak,
What is D7947,i can't open your link of Show drill holes in pads - CAM output - D7947
Thanks & Regards,
Dinesh.G