Which of the following states have been found to have high number of over exploited units of ground water?
A. Rajasthan and Delhi
B. Punjab and Haryana
C. Uttar Pradesh
D. Tamil Nadu and Karnataka
E. Madhya Pradesh
Choose the correct answer from the option given below:

Correct option is B

The passage indicates that several states in India have been identified as having a high number of over-exploited units of groundwater. These states are:
·       Rajasthan
·       Haryana
·       Punjab
·       Delhi
·       Tamil Nadu
·       Karnataka
In 2022, Rajasthan, Haryana, and Delhi were noted as having critical levels of groundwater exploitation, and in 2017, the situation was even worse, with 17% of the units in India being over-exploited. Although various efforts have been made to recharge and conserve groundwater resources, the number of over-exploited units remains high in these states.
So, the correct answer is (b) A, B, and D only.