IS 4326 2013 is the latest code for Earthquake Resistant Design and Construction of Buildings.
You can download IS 4326 – 2013 PDF with this link
You may also like to Download IS 13920-2016 A code for ductile detailing of RCC structures.
Relevant Downloads-
IS 456 2000 (Plain and Reinforced Concrete – Code of Practice PDF)
SP 16 (Design Aid for Reinforcement Concrete to IS 456-1978
Download NBC 2016 – Volume 1 & Volume 2 [PDF]
International Building Code 2021 Version
International Building Code 2018 Version