I did a conversion to kilos (cause I'm like that) and to get to your goal you need to lose 6-7 kilos each month, which is nearly 2kg per week(approx 4lb). I would say that this is possible, although I wouldn't recommend that rate of loss because it would generally only be obtainable by unsustainable means. (If someone checks my maths and finds I am wrong, please correct me!!)
However i sense that perhaps this is for some really important event, like a wedding or something, so I can understand you wanting to up the rate of loss. Have you ever tried losing weight successfully in the past? If so, could you use what you did then as a basis to do it this time?
Basically, to lose fat you will want to increase your cardio exercise (so walking, running, swimming, cycling), and reduce your calorie intake. Try cutting right back on sugars and fats and highly processed foods and stick to relatively natural vegetable grain and LEAN meat sources and reduce portion size. Try to make your carbohydrates complex ones (such as wholemeal grains etc) and stick with Low GI (which basically means cutting out sugars and simple carbohydrates like highly refined flours/breads/cakes etc).
If you are really keen and have the money, perhaps invest in a personal trainer/dietician/weightloss consultant.
DO NOT starve yourself, you will do yourself harm and impede your weight loss efforts.
Hope those tips help - you can also have a look round the site for others
35kg lost. (November 2005 - October 2006)
15kg gained again (as at October 2010).
Back to the drawing board - Let's do this thing!
"You can't change the winds, but you can change the sails"
"Reach out and take control of what lands in your lap"