Question raised in Lok Sabha on Evaluation of Polluted Standard, 04/07/2019. Under the Namami Gange Programme. Grossly Polluting Industries (GPIs) located on main stem of river Ganga and its tributaries are monitored at regular frequency by CPCB /State Pollution Control Boards (SPCBs) for verification of their compliance status with regard to consent condition imposed by respective State Pollution Control Board and industry specific discharge standards.