M N Consultants One Design Solutions, based out of Kolkata, is in operation for the last six years, but its partners have more than 20 years of experience in leading major architectural and structural design companies. It is involved with concept design along with providing detail engineering and all other allied service seamlessly, providing an end-to-end design service which is efficient, well-coordinated and, because of the past experience of its partners, of the highest quality commensurate to international standards.