PF - need to pay contribution from Feb-2020 till June-2020 and also registered our employee who has already left us

Respected All, Please Help me To Clarify , we are a New Setup , we got the Registration of provident fund in late fab-2020 due to some reason we were not register our Employees and pay the contribution PF ,
Now Its June , I need to pay contribution from Feb-2020 till June-2020 and also registered our employee . But some of the employee has already left our organisation. Kindly help me to know are we able to register those employees who already left us. or we can only register those employees who are working at present? Looking forward to get answer of my Question.
Thank you

You can pay the contribution till their date of leaving. After that you can exit them on the respective dates of their leaving. So, the interest and penalty will be assessed only till their dates of exit.