Depends on the team. Once is a while or for a short period of couple of weeks is fine in Advisory but long term is usually an issue
Extension of work hours is common - it is usually a task to ask for flexi timing on a regular basis (usually has a compensation impact).
Answered - Advisory - Senior Management (Former Employee) - Gurgaon
40 hours a week ,but asked to extend when its peak season
Answered - Trainee auditor (Former Employee) - Zimbabwe , Harare