BTL EPC Ltd. has state-of-the-art manufacturing facilities, a company with ISO: 9001, ISO: 14001, OHSAS: 18001, IBR, CCOE accreditations. BTL EPC Ltd. is also associated with Ministry of Defense for more than 40 years, being registered with Controllerate of Quality Assurance (Engg.) Pune under DGQA – New Delhi. Total Manufacturing Area: 4,50,000 sq.ft. | Covered Manufacturing Area: 3,00,000 Sq.ft. | Number of Workshops: 3 units in Kolkata and 1 unit in Durgapur.