A tripartite concession agreement between National Mission for Clean Ganga (NMCG), Kolkata Metropolitan Development Authority (KMDA), and which of the following was signed in June 2021?

• A. Mathura Waste Water Management Private Limited
• B. Jamnagar Waste Water Management Private Limited
• C. Maheshtala Waste Water Management Private Limited
• D. Nagpur Waste Water Management Private Limited
• E. Vishvaraj Waste Water Management Private Limited