Amul has been producing classic ads for decades now. It has become a cultural landmark over the years. Not just their ads, but the way Varghese Kurien created the whole "white revolution" in the country WRT milk production. This particular ad is not really upto their usual standards. Check out the recent "hum kisi se KOM nahin" ad after Mary Kom won the bronze at the 2012 Olympics.
For people who are not aware of Amul and the way they revolutionized milk production in India, please read about Amul and its stalwart, Varghese Kurien. His autobiography is a must read. He is the father of the "white revolution", and the standard bearer of "operation flood" - a project of the National Dairy Development Board (NDDB), and the world's biggest dairy development programme - which converted India from being a milk deficient nation into the biggest milk producing and exporting nation in the world, surpassing even the US of A.