Information on Passport and Visa Requirements for Turkey
Visa requirements for Turkey depend upon the diplomatic agreements between the countries concerned. Entry visas to Turkey can also be obtained at Istanbul Airports for some countries.
Participants are advised to check visa requirements with the Turkish consulate in their home country or with their travel agency.
You can also learn about your visa requirements from:
To avoid any inconvenience, apply for your visa in person and 1 month before you proceed to Turkey. You may need an invitation letter from the local organizers in order to get your visa.
Also Turkish Ministry of foreign Affairs starts to provide E-Visa for most of the countries. You may check, obtain and pay for your visa from the link below...