Missing WFO in TCS as team in different locations

Nothing will happen , you must have a reason , keep that reason and proof ready

First impact is the qva. You should also receive input from your hr in case any limit is broken. Wfo policies are varying wildly from one unit to another nowadays. If you are in doubt, follow them to the best of your knowledge, or ask your unit’s hr for what’s acceptable and what’s not. No concrete answer here.