Step 1: The question asks for the FALSE statement, so we look for the option that is factually incorrect.
Step 2: India, along with ten other WHO South-East Asia Region member countries, resolved to eliminate measles and control rubella and CRS by 2020, and India did launch the MR campaign. Therefore the claim that India has not launched the campaign is false, making option 3 the answer.
Step 3: The other options are true: all children from 9 months to less than 15 years receive a single MR shot during the campaign, the campaign targets measles and CRS, and after the campaign MR vaccine becomes part of routine immunization, replacing the standalone measles vaccine given at 9 to 12 months and 16 to 24 months.