We are an IT company based in Gujarat. Recently, we crossed the 20-employee mark, prompting management to initiate PF contributions. As of today, none of our employees has a basic salary less than Rs. 6500, except for a couple of trainees. However, there are several employees whose basic salary was below Rs. 6500 when they joined (PF was not applicable at that time). Are we now obligated to pay PF if we register at this point?