if you don't have previous yr's ITR or form 16, your bet is getting a salary slips from your company's (needs to be a generated slip not a docx-published-pdf) portal as it is
And sending them the password on
docs@aexp.com and cc'ing it at
qcnorthindia@aex.com as well with the Application number in the subject.
you should receive a call clarifying if the docs are accepted or not.
AmEx System is too strict and agents can't really help. form 16 (A&B) is prob the best document that has the chances of being accepted.