is drinking water is good before eating or after eating?

It's better to drink before and in the middle of your meal. It's healthy to drink some water before starting your meal. After the meal drinking water is not so healthy but if you have acidity then you should drink after your meal.

both of them are good for dieters like me

I do both. I drink water throughout the whole day. I feel alot better when I drink alot of water than just a little bit in a day.

It is all good to drink water anytime of the day to replenish the body and avoid dehydration. it is not only during meal times that one should drink water. As for me, I drink water at any given time. When mealtime is up, when i drink water before i eat, it makes me already half full and help me not to over eat. So it works like a good diet plan. When you eat after meal that is only to close your appetite and wash down food debris. It is also good for proper metabolism.

I've heard that if you drink a glass of water before eating it will fill you up faster when you eat so you won't eat as much. I'm not sure if this is true or not but that's what I've heard from some diet freaks. I just drink water during my meals.

after meal .. ?????