This research presents the effects of provisions of openings in flexural behavior of reinforced concrete beams on compression block of the section. Which gives an emphasis on the effectiveness of providing PVC pipes as an opening provider by considering the interaction developed on the interface of buried pipe and concrete with the longitudinal and transverse orientations. Both experimental and numerical investigation are conducted for sizes of small opening (16mm diameter) and large opening (50mm). In experimental investigation 15 simply supported beam samples are prepared including the control beam for longitudinal openings, transversal openings with and without inserted pipes and drilling in transverse as well. In the case of numerical analysis, five beam samples were modeled as the same size of opening with the experiment and additional five beams for large opening. These beams were tested under three-point loading. From the test results, it could be concluded that the ultimate load carrying capacity of the RC beam under lateral provision of opening with embedded reduces only 1.43% and with the same configuration of opening without embedding pipe has lesser capacity of 10.30% in ultimate load. For the beam type under transverse opening with embedded pipe has reduction in resistance 10.42% and without embedded transversal opening is about 11.38 % reduction. For the retrospective penetration /providing opening by drilling it reduces 22.72 % in ultimate carrying capacity of the section. From nonlinear finite element analysis for large openings which shows reduction of 24.89 % in longitudinal 30.88% reductions in transverse. Providing PVC pipes improve more flexural capacity (8.86% ) in longitudinal openings and 11.92% for transverse openings for small openings and 6.98% more flexural resistance in longitudinal orientation and 4.12% for transverse openings for large openings.