Medicinal Grains
Every rice in Indian has been traiditonally been use for various medical benefits.
Navara Rice is a medicinal rice used in Ayurveda for neuromuscular disease. Read more about it.
Mappillai samba rice is very useful to Nervous System
Rakthashali Rice
A research paper on Indigenous rice varieties of India.
http://en.wikipedia.org/wiki/Navara_rice
http://www.thehindu.com/todays-paper/tp-national/tp-kerala/article2864465.ece?homepage=true
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3366884/