Invitation letter from Invitee counterpart, on letterhead of the company for business, addressed to ‘The Visa Officer, Consulate General of Singapore, Mumbai’ stating name of the applicant, designation, nationality, passport number, purpose of visit, period of stay with dates and with the detail of expenses taken care by invitee. It should also contain the name and designation of the authorised signatory with Company Seal. Form V39-A, Letter of Introduction (LOI) required from sponsor along with FIN (Foreign Identification Number)/ NRIC.