The correct answer is 2nd October 2008. Smoking in public places was prohibited nationwide in India starting from this date. This decision was part of the government's efforts to reduce smoking-related health issues and promote public health awareness. The prohibition included various public places like restaurants, bars, and government offices, aiming to minimize the exposure of non-smokers to secondhand smoke and create a healthier environment for everyone. The law was enacted and enforced by the Ministry of Health and Family Welfare under the Cigarettes and Other Tobacco Products Act.