A three-member CAS panel, chaired by Justice Annabelle Claire Bennett (Federal Court of Australia) suspended the International Association of Athletics Federations (IAAF) regulation, that governs eligibility of females with naturally-occurring Hyperandrogenism.
Dutee was barred from competing against women because her natural testosterone levels were too high.
"This is a great day for women sports and for Indian sports. It is a tremendous victory for India", Sonowal said through a press release.
With the help of Ministry, she was reinstated in the Centre for Excellence, Patiala.
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The CAS has given the IAAF two years to present convincing scientific evidence establishing that naturally high testosterone levels provide an unfair athletic advantage to hyperandrogenic female athletes as compared to their peers.
If the IAAF does not, or cannot, do so the Hyperandrogenism Regulation will be rendered null and void.
According to the information provided by Dutee Chand, Toronto-based lawyer James Bunting, Justice Morris Fish of Davies Ward Phillips and Vineberg LLP, who represented Dutee Chand pro bono in CAS, her advisors include Dr. Payoshni Mitra, Professor Bruce Kidd and Dr. Katrina Karkazis in the case.