Is there any report related to the status of water quality monitoring infrastructure/capability in India?

Is there any report related to the status of water quality monitoring infrastructure/capability in India? There are a few of "state of water" reports I could find but not too much on how much is invested in India by the public and private sector to measure/assess the state of the water on an annual basis.

Can independent quality monitoring labs exist outside of Central Pollution Control Board's (CPCB) purview?

Could someone provide names of some nationwide labs? I have been in touch with some German monitoring equipment suppliers but my assessment is that their sales are not significant. Request some insights please.