Ashok Leyland is an Indian automobile manufacturing company and the second largest commercial vehicle manufacturer in India. It sells about 60,000 vehicles and 7,000 engines annually through its six manufacturing plants. Ashok Leyland is committed to quality assurance and received ISO 9001 certification in 1993 and ISO 14001 certification in 2001 for its manufacturing plants. These certifications help Ashok Leyland continually monitor and improve its operations, comply with environmental regulations, and increase customer satisfaction, making it the second largest commercial vehicle manufacturer in India.