The Green Planner is a database to provide information on different plants for mitigating air pollution. These plants can be planted on roadside, road-dividers, in greenbelts, and in indoor premises. The plantation of such locally suitable and pollutant mitigant plants will help to ameliorate the deleterious effects of different air pollutants from industrial emissions, vehicular exhausts, and indoor premises. The plant list in the Green Planner provides the botanical and common names of pollution tolerant and mitigant plants, their distribution in India and suitable planting sites along with economic and ecological benefits and other relevant information. This App is developed by ENVIS-NBRI at CSIR-NBRI, Lucknow-India.