Nutrition and Health Benefits: Singoda flour is rich in B vitamins and potassium, and also contains antioxidants. It's roughly 20% protein, just over 50% starch, 3% sugar and minerals and about 1% fat. It also has fibre. Water chestnuts, or singhara, belong to the non-starchy, low-calorie fruit group, which has zero fat content and may help you lose weight. Water chest nut, also known as singhara in Hindi, is a very common autumn and winter season fruit that grows underwater.Oct 16,