1) The document describes a laboratory experiment to determine the particle size distribution of a soil sample through sieve analysis according to IS: 2720 (Part IV) - 1985. Sieves ranging from 75mm to 75 micron are used to separate the soil particles by size. 2) The percentage of soil retained on each sieve is recorded and a particle size distribution curve is plotted to classify the soil. Parameters like D10, D30, D60 and coefficients of curvature (Cc) and uniformity (Cu) are calculated. 3) Based on the particle size distribution curve characteristics like grading, permeability and shear strength can be estimated to classify the soil and determine its engineering suitability.