•  There is no way to keep a watch over the problem of water-logging: This statement is incorrect. 
    • There are several methods to monitor and manage water-logging, such as using groundwater monitoring wells, piezometers, and regular soil moisture testing. 
    • Proper irrigation management, drainage systems, and timely monitoring can help detect and address water-logging issues effectively. 

Additional Information 
Untimely maturity of the crops is the characteristic of water-logged lands: This statement is correct. Water-logging can lead to oxygen deficiency in the root zone, causing stress to crops, which often results in untimely or stunted maturity. 
The percolation loss can be reduced by keeping the intensity of irrigation low: This statement is correct. Reducing the intensity and amount of irrigation can help minimize percolation losses and prevent the water table from rising too high, which can contribute to water-logging. 
Seepage drains reduce the chances of water-logging: This statement is correct. Seepage drains help remove excess water from the soil, lowering the water table and reducing the risk of water-logging.