Posted by IS 1893 Part I 2016 is the Indian Standard Code of Practice for civil engineers and structure designers. It inscribes Criteria for Earthquake Resistant Design of Structures.
You can download IS 1893 Part I 2016 in PDF with this link
Read Also- 4 Virtues of Earthquake Resistant Building Design
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)