How much time does it take to get slim?

Hello there! It all depends on your body type and on how strictly you follow your diet and how much exercise. It can usually take a few months but if you're exercising at least 1 hour a day and eating a healthy amount of food for you, (no carbs, sugar, etc) you'll start seeing slight changes during the first weeks. I suggest you visit a nutritionist so he or she can give you a diet plan.

A normal man required 1500 to 1800 calories in a day to remain active. Make a diet plan and strictly flow it. Eat healthy but low calories foods. Most importantly you have to some workout if you want to lose your weight.