A study was carried out in AEU 12 (Southern and central foothills) of Pathanamthitta district in Kerala to assess the changes in soil properties due to the heavy flood that affected the region during the south west monsoon of 2018. A detailed site specific analysis of soil parameters was conducted to understand the extent of changes in the physico-chemical properties of soils of AEU 12 of Pathanamthitta district which was one of the worst hit during the 2018 floods. Surface soil samples were analysed for soil texture, bulk density, maximum water holding capacity, pH, EC, organic carbon, available primary and secondary nutrients. The results showed that the predominant soil textural class in the area was sandy clay loam. Bulk density was <1.2 Mg m-3 and maximum water holding capacity was between 30 and 50 per cent for most of the soils of the area. Moderation in soil acidity was observed compared to pre flood data due to an increase in pH in areas with sediment deposition while soils with extremely acid pH increased in areas which experienced erosion. A reduction was observed in organic carbon, available K and S levels. Available N was low and available P medium for more than 80 per cent of the area whereas available Ca levels were similar in pre and post flood soils and there was an increase in available Mg levels.