The National Mission for Clean Ganga (NMCG) and Bihar Urban Infrastructure Development Corporation Limited have signed an agreement with DK Sewage Project Private Limited, a subsidiary of Va Tech Wabag Limited, for the development of STPs in the Digha and Kankarbagh zones in Bihar. The projects involve development of a 100 mld capacity STP at Digha and a 50 mld STP in the Kankarbagh zone and associated infrastructure in Patna, Bihar, through the hybrid annuity-based PPP model under the Namami Gange programme at an investment of Rs 14.03 billion. The scope of work also involves O&M for a period of 15 years. The projects are being funded by the World Bank.