Taiwan Tourist Visa Required Documents :
2 photos with 80% face coverage, white back ground
Visa application form : Online Form https://visawebapp.boca.gov.tw/BOCA_MRVWeb/subroot/MRVWeb0_form.jsp
Covering letter : Addressed to “To The Visa Officer, Taipei Economic and Cultural Center, Chennai ”
Invitation letter and letter of guarantee
Air Ticket itinerary
Personal Bank statement for last 6 months (Original ) and Last 2 years IT Returns and Last 6 months payslips
Original leave letter.
Note : Depends on case to case basis additional documents might be required. and consulate may ask personal interview , single or multiple entry visa purely depends on consulate decision .