Breasts of many ladies grow bigger
What is the right way to reduce them without surgery and medicines.
Please tell about the exersice and naturall ways

There isn't one. A woman's breast are fat, but you can not do one exercise just to reduce your breasts.
Losing weight all together does reduce the size, but they will never shrink completely! When woman become fat, their breasts to get a bit bigger. Then when they loose the weight, the get a bit smaller.

As stated, there isn't anything specific for the chest to reduce size, though it is posible to lose weight in the breasts when an overall weight loss program is followed. There are exercises that can firm the muscles behind the tissue.

I know of one friend who reduced by a complete cup size through better fitness. She had been considering a breast reduction, but after getting into better shape, she was not comfortable.

This is NOT to say all women who suffer through the back problems and issues of self image that can come from large breasts simply need exercise. Just that overall weight reduction can reduce chest size in some women.