Explanation:

• National Clean Air Programme is a nationwide programme executed by the Central Pollution Control Board (CPCB).
• National Clean Air Programme (NCAP) is comprehensive mitigation actions for prevention, control and abatement of air pollution besides augmenting the air quality monitoring network across the country and strengthening the awareness and capacity building activities.
• It aims to achieve a national-level target of 20-30% reduction of PM2.5 and PM10 concentration by 2024.
• 2017 is the base year for the National Clean Air Programme.

Objectives

• To augment and evolve effective and proficient ambient air quality monitoring network across the country for ensuring comprehensive and reliable database
• To have efficient data dissemination and public outreach mechanism for timely measures for prevention and mitigation of air pollution and for inclusive public participation in both planning and implementation of the programmes and policies of government on air pollution
• To have a feasible management plan for prevention, control and abatement of air pollution.

Hence all statements are correct.