D D Trading Concern (DD Trading), a Guwahati (Assam) based Civil Construction and infrastructure development bootstrap startup firm engaged in providing various kind of railway infrastructure development and maintenance services – Construction, Repair, renovate of railway bridge, tracks, earth works, all kind of mechanical works, electrical installations and fittings; platform construction and maintenance, construction of buildings, as well as development of public roads, fly-overs, highways, sanitation and sewerage system, water supply and treatment, solid waste management system, irrigation and creating all other civil infrastructure and public facilities includes supply of manpower. Our team of Civil engineers, architects and Construction industry professionals are from core industry experience in the same line with a vision to make QUALITY WORKS | QUALITY MATERIALS | COST EFFECTIVE. Company Founded by Mr Simanta Das and Mr Dhajen Das having past experienced in this construction and engineering line. Company proposed to serve Govt organisations, Local authorities, India railways and other PSUs, Industries and Residential and Commercial projects with their expertise ser