The three-member committee, which includes the Additional Secretaries of the Water Resources and Environment ministries, was set up last year by the government to recommend as to what should be the environmental flow in Ganga basin, including in Yamuna.
Meanwhile, NGT in January this year constituted a panel of experts drawn from various departments to examine strategies for making Yamuna pollution-free.
The states in question were of the view that this would ensure there were no legal issues arising over environmental flow in the Yamuna.
However, the members of the government committee came up with different opinions, thus delaying the submission of the report of the NGT panel.
When contacted, Union Water Resources Minister Uma Bharati said that the committee members have been instructed to come to a consensus on the issue such as quality, quantity and standard of water to be maintained for environmental flow.