Health Minister Ghulam Nabi Azad says the WHO removed India from the list Saturday after the country passed one year without registering any new cases.

The milestone is a major victory in the global effort to eradicate polio and leaves only three countries with endemic polio — Pakistan, Nigeria and Afghanistan. India must pass another two years without new cases to be declared polio-free.

Prime Minister Manmohan Singh praised some 230,000 volunteers who traveled across India to vaccinate children and said India’s success against polio “shows that teamwork pays.”