Hi! Cutting out startchy food and carbohydrates at dinner time will help to reduce your caloric intake. I suggest a combination of a low fat, well balanced diet and regular cardiovascular exercise.

Consult a diatician!!

Eat less calories and burn more

Dieting won't make you lose weight but do some aerobic exercises and take some protein-based foodstuff.

Eat other foods in limited quantity

The thing is that you have to burn calories to lose weight. The more intake of calories, the more work out is required to burn that much calories.
So, eat rice and potatoes (must be really tasty!) but work out more. And lastly never go for the treadmill !! It is a dangerous thing and is found to bring about a heart attack to otherwise healthy youngsters even. Jogging for a longer time (no running around the ground as it is too like treadmill) and weight exercise.
Having said all that, I don't think rice and potatoes should be kept so close to heart!!! :)

Rice has fat but remove the water when cooking white foam that comes, potato if you boil and eat has no fat so you can eat both but for wt loss the best method is moderation, daily exercise

Which genius told u , not to eat potato n rice during weight loss