IR
What you need is a valid license, with IR balid for min 6 months, medical valid for min 6 months.
You can give them any license. You are flying 757, so u got selected for NTR Boeing FO.
They need your license to have valid rating. Rating is only valid if your IR is valid.
U can PM me, i just went through alot of this discussion with QR, final result delay in joining date.