India, Nov. 10 -- An estimated 38.6 million adults in India are living with undiagnosed diabetes, accounting for 43% of the 89.8 million adults living with the condition, according to a new survey commissioned by the International Diabetes Federation (IDF).

The survey also said that an analysis of adults at increased risk of type 2 diabetes in India found that many underestimate their risk of the condition and are unsure how to access testing services.

According to the National Institute of Health (NIH), type 2 diabetes - the most common form of the disease - occurs when the level of glucose, or sugar, in the blood is too high. Type 2 diabetes can develop at any age, including in childhood, but it most often occurs in middle-aged and ol...