Reinforced concrete (RC) is one of the most widely used building materials in the world. Civil engineering structures mostly utilize components constructed of RC in a variety of shapes and sizes. Reinforcing steel and concrete together resist (tension and compression) respectively, in reinforced concrete; the reinforcing bar, however, also resists shear, tensile, and compressive stresses. The most important hydraulic constituents are the calcium silicates, C2S and C3S. Upon mixing with water, the calcium silicates react with water molecules to form calcium silicate hydrate 3CaO · 2SiO2 · 3H2O and calcium hydroxide Ca[OH]2. Cross-sectional area of plain cement concrete is taken into account while performing analysis by any software; however, reinforcement bar area is not taken into account. The aim of the study is to check behaviour of change in vary compression and tension reinforcement of the doubly reinforced beam from minimum to maximum as suggested in IS456:2000. Towards that experimentation designed testing of 90 beams with varying depth and tension reinforcement with compression reinforcement. The study focused on effect of variation in compression reinforcement.