[en] The purpose of this study is to investigate the radon levels of groundwater being used for drinking and indoor radon levels in the environs of villages/towns of Hoshiarpur district of Punjab, India, to determine the health hazards. Radon concentrations in the collected water samples were measured with RAD7 an electronic radon detector connected to a RAD- H₂O accessory (Durridge Co., USA). In the setup, the RAD7 detector was used for measuring radon in water by connecting it with a bubbling kit which enables to degas radon from a water sample into the air in a closed loop. A sample of water was taken in a radon-tight reagent bottle of 250 ml capacity connected in a close circuit with a zinc sulphide coated detection chamber which acts as scintillator to detect alpha activity and a glass bulb containing calcium chloride to absorb the moisture. Air was then circulated in a closed circuit for a period of 5-10 min until the radon was uniformly mixed with the air and the resulting alpha activity was recorded and it directly gives the radon concentration. The measured radon concentration in drinking water ranges from 2.03 BqL^-1 to 6.65 BqL^-1 with an average value of 4.27 BqL^-1. The measured values of radon concentration in drinking water are well within the range (4 to 40 BqL^-1) suggested for radon concentration in water for human consumption by the United Nations Scientific Committee on the Effects of Atomic Radiation. The measured values of indoor radon concentration in dwellings of the same area vary from 10 Bqm^-3 to 28.2 Bqm^-3 with an average value of 20.28 Bqm^-3. The measured values for drinking water and for indoor air for the study area suggest that the area is safe for residents and there is no significant threat to the population as per as radon concentration is concerned