HSBC's outsourced third party guys (n girls) insist on proper salary slips - with all valid validations - exactly spelled name, designation and address and all other mandatory details.... And, the last 6 months of salary SB account statement clearly showing the exact amounts with narration of SALARY in the description column. At times - for newly joined employees, they will also ask appointment letter. Thesr are besides the usual dox like the PAN, AADHAAR, ITR Latest, Residential address proof (strictly only approved ones).....ANY MISMATCH OF ANY OF THESE PARAMETERS - IS TROUBLE.