e-Visa - Only Ordinary Passport holders may apply for eVisa application online.
Select Visa Service as G20 eConference Visa and purpose as "To Attend G20 Conference/Meeting".
Regular Visa - Diplomatic/Official/Ordinary Passport holders may fill online application and submit at concerned Indian Embassy/Mission in their country.
Select Visa Service as Conference Visa and purpose as "To Attend G20 Conference/Meeting".