According to your height your ideal body weight would be around 83-85 kgs. You are young and would have a good metabolism, so losing weight is not that hard. Try and cut down all carbohydrates
esp maida based products, potatoes and sugar
. Also start exercising regularly, at least a 45 min
walk daily and 2-3 sessions of strength training. You can even play a sport like badminton or tennis or any other you like 3-4 times a week.