'Mission Indradhanush' launched by the Government of India pertains to

 a) Immunization of children and pregnant woman
 b) Construction of smart cities across the country
 c) India's own search for the Earth like planets in outer planets
 d) New Education Policy

CSE Prelims-2016

Immunization of children and pregnant woman. Mission Indradhanush was launched on 25 December 2014.