Is/Iec 62305
Bureau of Indian Standards has adopted IEC 62305 as Indian Standard in December 2015, which means it is IS/IEC 62305 and replaces IS 2309 Code of practice for the protection of buildings and allied structures against lightning. India has adopted this IEC 62305 as Indian Standard only in 2015, whereas many countries have adopted it as their national standard, many years back.
IS/IEC 62305 – Protection against lightning has 4 parts
IS/IEC 62305-1: Basic Principles
IS/IEC 62305-2: Risk Assessment
IS/IEC 62305-3: Protection of structures & Life Hazards.
IS/IEC 62305-4: Protection of electrical & electronic systems within the structure.