NEW DELHI  - India's Premier Manmohan Singh called malnutrition in the country "a national shame" on Tuesday as he released a major survey that found 42 percent of children under five were underweight. "The problem of malnutrition is a matter of national shame," Singh said at the launch of the HUNGaMA (Hunger and Malnutrition) Report, which surveyed 73,000 households across nine states. "Despite impressive growth in our GDP, the level of under-nutrition in the country is unacceptably high. We have also not succeeded in reducing this rate fast enough," the 79-year-old prime minister added.