IS 1893-2016 is a code of practice for civil engineers and structure designers. IS-1893-2016 inscribes criteria for earthquake resistant design of structures.
Other Relevant Downloads are below.
SP-16 Design Aids For Reinforced Concrete structure
IS 456:2000 Plain And Reinforced Concrete-Code of Practice(pdf download)
IS 456:2000 Amendment no.5 July 2019(pdf)