M. N. Dastur & Co. (P) Ltd. is a prominent independent consulting engineering firm established in 1955 by Dr. Minu Nariman Dastur. Based in Kolkata, India, the company operates multiple offices worldwide, including locations in Germany, the USA, Canada, Japan, the UAE, and Bahrain. It is recognized for providing integrated design and engineering consultancy services for large-scale industrial projects across sectors such as steel, mining, metals, power, cement, infrastructure, and energy.

The company offers a range of services, including feasibility studies, project reports, detailed engineering, procurement, project management, construction supervision, and technology solutions. In 2008, it expanded its capabilities by launching Dastur Business & Technology Consulting (DBTC), which focuses on enhancing competitiveness and productivity in manufacturing, materials, energy, and technology industries. M. N. Dastur & Co. serves a diverse clientele, including government bodies and large industrial corporations, particularly in the steel and power sectors.