Can we transfer PF from one UAN to another UAN

Hi Seniors,
One of the Member has two UAN No. He worked 9 Years (i.e. 8 year previous and 1 Year present company) ,and he want to transfer his PF amount in New UAN also he wants that his period show 9 years due to pension purpose.
It is possible? if yes so please help us..........
Thanks
Rahul Kumar

Fill form 13 for transpfer PF from Old UAN To New UAN or U can use Member Portal for transfer PF.