New Delhi/Amritsar/ Purulia/ Mumbai, Jan 14 (ANI): India marked three years since its last reported case of polio, paving the way for it to be declared free of the crippling virus and boosting efforts to wipe out the disease globally. The country's last case of the wild polio virus was detected on January 13, 2011, in West Bengal. World Health Organisation (WHO) would officially declare India as polio-free by the end of March, when the legal process for certification is completed, according to a WHO representative. Health Minister Ghulam Nabi Azad said it is a historic day for the country, which once counted for over half of the global polio burden.
