Nationwide cleanliness survey to be world's biggest: PM Modi

During his 'Mann ki Baat' address on Sunday, PM Narendra Modi said a nationwide cleanliness survey would be conducted between January 4 and March 10. Adding that the survey 'Swachh Survekshan' will be held among an over 40-crore population, PM Modi claimed it will be the world's biggest survey. It will aim to evaluate the cleanliness level in urban areas.