Bhatt Dal / Black Beans, also known as turtle beans, caviar criolla & frijoles negros, is a favourite among the Kumaon part of the Uttarakhand India. It is also used in Tamil cuisine, where it is known as karuppu kaaramani and in Maharashtrian cuisine, where it is known as Kala Ghevada. Black beans are rich in antioxidants, which can protect the cells in your body and reduce your risk of conditions like heart disease & cancer. Black beans provide you with the following vitamins and minerals: Vitamin A. Vitamin C. It is also rich in protein. Among other benefits, black beans may help strengthen bones. Black beans contain quercetin and saponins which can protect the heart.