Pulse Polio Programme was launched in 1995-1996 in order to eradicate the polio disease from the world. The aim of this programme was
to immunise those children who are not earlier immunised or are partially immunised
to boost the immunity of children already immunised
to replace disease carrying wild virus by harmless vaccine virus in the environment
This programme involved simultaneous administration of polio drops to children under three years of age on a single day throughout the nation. Under this programme, 2 doses of vaccines are given 4-6 weeks apart. The days on which this programme is carried out are pre-fixed and are called National Immunisation Days.