I answered this a few minutes back. I also registered just then. I do not see my post so I want to do this again.
Hello Shanthi and Rajiv,
Rajiv is right. Ragi is a very high GI food. Please see GI LISTS on the web. Ragi is more than 100.!
I found Foxtail millet(FW) to be very effective. I am in good control of my weight and blood sugar level after switching completely to FM and completely avoiding Rice and Wheat. I lost 12 kgs and reduced Insulin by 25%. Thirty more people who followed my advice have ALL, reduced their weight in varying proportions, as well as have better control of their sugar.
The only other research I could find on the web was by Dr. Ankita Sharma. PhD. She has estimated the GI of Roti made with equal amounts of flours of FM+Bengal Gram+ Barley to be 34. FM is Thinai(tamil),Korra(Telugu), Navane (Kannada), Kangni (Hindi).
Hope you will try and benefit too.