INDIA- Indian Health Ministry has described three years polio-free period in the country as a monumental milestone.

It is seen as confirmation of one of India's biggest public health successes, achieved through a massive and sustained immunisation programme.

It would be recalled that in 2012 the World Health Organisation removed India from the list of polio-endemic countries, leaving Pakistan, Afghanistan and Nigeria on the list.

The list refers to countries in which the virus is circulating freely and the transmission of the infectious disease has not been stopped.

Despite India's success, health experts fear a resurgence of polio in other parts of the world.