Urbanization is the most dominating land use change in the developing countries.There is a considerable growth (30 fold increase) of urban area during recent decades over the central National Capital Region (CNCR) of India. The present study assesses the impact of increasing urban sprawls on precipitation related to thunderstorm and associated meteorological parameters such as convective available potential energy (CAPE) and convective inhibition (CIN) using the Weather Research and Forecast (WRF) model. The study shows that in response to increased convective activity the PBL depth increases by about 400–800 m over urban stations. Furthermore, all sites that got urbanized in the year 2014 showed significantly higher MCAPE of about 10–14% than their values in 1972. Just before the thunderstorm, the maximum CIN (MCIN) value decreases for the urban stations and reaches threshold of MCIN (<50 J/kg) quicker than croplands which trigger thunderstorm earlier.The maximum updraft velocity of stations converted to urban in D2014 is increased by 5–6% when compared to their D1972 values. It is further seen that the intensity/spatial expanse of precipitation and high-intensity rainfall pockets are increased with increasing urban sprawl.The increase in precipitation intensity appears to be exacerbated downwind of the urban area.