New Delhi, Nov. 21 -- : Congress member Shashi Tharoor on Thursday said that the National Clean Air Programme (NCAP) launched by the government does not have legal measures "to penalise non-implementers" and said there was a need to bring a legislation to give the programme force of law.

Participating in the debate on air pollution in the Lok Sabha, Tharoor called for an action plan, which is courageous, ambitious, technology-based, collaborative and has tough deadlines.

Terming pollution as a "national crisis", he said the nation cannot just be concerned about it after Diwali and winter months.

Tharoor said he has been holding consultations with experts and civil society members about the toxic air quality.

The Congress leader said pol...