India tops world list of arms buyers. This disclosure was made on Monday in a report by The Think Tank International Peace Research Institute of Stockholm. According to the report released on Monday, India has bought the most weapons in the world during 2013-2017. In this case, its share is 12% in the world. According to the report, compared to 2008 to 2013, India has bought 24% more weapons between 2013 and 2017.