In 1970-71, Nagchaudhuri also chaired a committee that examined India's maritime security issues. The committee made several key recommendations about the requirement to patrol India's vast coastline, set up a registry of offshore fishing vessels in order to identify illegal activity, and establish a capable and well-equipped force to intercept vessels engaged in illegal activities. The recommendations of the committee formed the foundation of the subsequent Rustamji Committee in 1974, that led to the establishment of the Indian Coast Guard.