"Yes , I did go thru but it doesn't work on all individuals as every
individual body is different based on their food habits they grew upon
."

It works with all people because a very basic medical principle of how
the body uses foods is happening.  There might be individual variation
compared to the results but the results describe what happens.  As a
diabetic your glucose meter always is the final answer to the individual
variations as to which foods and how much one can eat to meet post meal
glucose goals.

"Coming to rice there are variety of them grown all over the world . The
rice grown in most parts of India has the least amount of starch and a
fair amount of fiber and most diabetic Indians eat rice only once a day
during lunch ."

Yes, I know of those rice varients, in fact they are discussed in the
information on those links.  As to when and how much rice is good for a
diabetic, the answer remains the same as above, let your meter tell you
and not a tradition of food patterns.

I understand that in a food culture where many foods are very highly
carbohydrate laden that choices narrow very quickly if one wants to have
an effective diabetes treatment.  The lists allow one to choose among
those food categories for the least glucose raising choices and by
combining those with the amounts of them that your meter says does not
violate post meal glucose levels then one can make the best of a hard
situation.

For example, your experience with legumes confirms this.  If you choose
those lower on the list glucose levels will be lower as compared to
those higher on the list and for the same amount of each.  There are
many dishes with chana dawl and it has the lowest test result of almost
any food.