As of my knowledge cutoff in September 2021, I do not have information regarding a specific incident involving the Uttar Pradesh Pollution Control Board (UPPCB) imposing a fine on 38 builders for illegal groundwater extraction. It is possible that this event occurred after my knowledge cutoff, or it might be a hypothetical scenario.
However, it is important to note that groundwater extraction regulations and fines can vary based on regional laws and enforcement practices. The UPPCB is responsible for regulating and controlling pollution in Uttar Pradesh, India. If such an incident occurred, it indicates that the UPPCB took action against the builders for unlawfully extracting groundwater, likely violating environmental regulations.
Please note that my response is based on the information available to me until September 2021, and there may have been developments or updates on this topic since then.