A field experiment entitled “Dynamics of soil carbon under integrated nutrient management practices in maize - groundnut cropping sequence" ” was carried out under field conditions during both kharif and rabi seasons of 2019-2020 and 2020-2021 at Field No. 50B of Wetland Farm, S. V. Agricultural College, Tirupati campus (under the judicatory of Acharya N. G. Ranga Agricultural University). Soil physical properties like bulk density, particle density and porosity of soil during both the years of study (kharif 2019-2020 and rabi 2020-2021) on maize-groundnut cropping sequence was not significantly affected by the levels of NPK while significantly affected by the application of organic sources. The pooled analysis results also showed similar trend. However, interaction effect was non significant between inorganic and organic sources during both the years.