Rejoined the company but did't work any where for two year and we did't mark him has exit employee.

Now do I need to continue with the same uan or can I mark him has exit employee, and then need to upload the details has new employee for making the pf payment for his account.

Now PF Remittance is based on UAN Number from Dec-2016.The UAN Existing can be made use by linking to your PF Portal

Hi Jeevan,
Doesn't matter the employee has worked somewhere or not, if the UAN number is active then it can be used for submission of funds in the same account. However the exit formalities need to be done otherwise if you rejoin the employee under the same employee code, then what would you show in the 2 years gap? Later on it can leads to industrial disputes if not systematic process is followed.
My suggestion, mark the employee exit in back date. Take him/her as a new joinee and contribute the funds in the same UAN account.