But why the US consulate said I am eligible for a dropbox?Usually for H1B first stamping they would expect inperson interview.
On this website https://ca.usembassy.gov/visas/visa-renewal-by-mail/, it says:
Visa applicants who meet the criteria below may be eligible to apply for their visas by mail, without a visa interview, if:
- They normally reside in Canada; and
- They are physically present in Canada; and
- Their visa and passport have not been lost, stolen, canceled, or revoked; and
- They fit into one of the following categories:
- Renewals in the Same Category: They already have a U.S. visa that is valid or has expired within the last 48 months and wish to renew their visa of the same classification (e.g. a holder of a recently expired J visa may NOT renew and get a B1/B2 visa) or
- F, M, or Academic J Visas: They are applying for an F, M, or Academic J visa and have previously been issued any type of visa; or
- Individual Petition-Based H, O, P, and Q Visas: They are applying for an H-1, H-3, H-4, O, P, or Q visa and have previously been issued any type of visa. Applicants for L visas are not eligible for interview waiver under this category.