IS:456 (Concrete) IS:SP.16.1980 (Concrete) IS:5525.1969 (Reinforcement details) IS:SP.34.1987(Reinforcement details) IS:2502.1963(Bar bending) IS:1786.2008(Reinforcement bar spec) IS:875.3.1987(Wind forces) IS:1893.1.2002(seismic forces)