He has served in the military and rose to the rank of Lieutenant Colonel, before becoming the founder and director of the country's Information Network and Security Agency, which is responsible for cyber-security in a country where the government has always exercised tight control over the internet.
Over the last four days, Prime Minister Narendra Modi greeted the heads of over 50 African nations, some of whom have extremely unsavoury reputations. Meet the 10 most controversial leaders who visited Delhi this week.