Looks like you missed a few important places. Actually Andaman and Nicobar (would be incorrect to add Nicobar since it is out of reach of the ordinary tourist due to tribal restrictions) Islands requires a minimum of 7 - 10 days to be explored in its full. There are multiple beautiful beaches and locales, each more alluring than the other. Looks like you missed out Ross and Smith Islands near Diglipur, trip around Port Blair itself and visits to Rangat, Mayabunder, Long Island etc. There is always time for something more each time you visit! Having savoured the pleasures of these pristine islands more than once, I must say, if there is actually heaven on earth, then it would indeed be here.
Thanks Rahul , I did not get a chance to visit Ross and Smith islands and the others that you mentioned. Andaman islands has many islands as you may be aware and each one has its own beauty. But it is not possible to do so even in 10 days :)