Are u obliged to go to the office even when u don't get ur salary on time?

My company (startup) hasn't deposited any epf amount since July 2023. Does this mean they can deposit anytime they want? This should be on time right?

Should you work for ur company even when the salary is not paid on time? We are told we wont get salary this month Is it high time to switch?

Is it mandatory to complete 9 hours in tcs office?