National Highways Authority of India (NHAI) has planted about 10 lakh plants along national highways in this monsoon season. <br/><br/>Road, Transport and Highways Ministry in a release said, the plantation drive is part of NHAI's activity towards ensuring and upholding the cause of Swachh Bharat Mission in providing clean, green and pollution free National Highways. <br/><br/>The Ministry said, the drive is taken up as a regular activity during monsoons and continues even afterwards with watering and maintenance of the plants.