How can I gain weight?

I am 48 kg now but I need to become 72 kg. Can you please tell me how. I can't eat a full stomach in evening since I have been in college.

well chocolate is good
and fattening (darnit)
so eat that
and ull be happy and fatter!!

I suggest eating lots of carbs (breads pastas) and fatty meats Or just working out more seeing as muscle weighs more than fat. What you could also do, if you wanted to bother for a day or so, is calculate how many calories you eat in an average day and then finding out how many you burn on an average day, once you find that out, if it turns out you are eating less calories than you burn then you are burning all of your fat etc. So what you could do is eat more calories than you burn just by finding foods that have a high calorie intake. (chips and crackers will do it for you too if you dont want to pig out and make yourself sick on chocolate) It really depends on if you are naturally lean or if college has taken everything out of you and it depends on how tall you are.

well, if you have eaten a lot regularly then I would suggest you pay your doctor a visit. It is either you have hyper-metabolism rate or your digestive system is not functioning well. I would suggest a mild way, that is to detox your body. Take constant dose of spirulina or chlorella daily. You will see the difference within your body in 2 to 4 months time.