Filing income tax return while pan updation is in process

Hi guys,

I am undergoing the process of name change in my PAN.  Whether should I file my ITR for this assessment year or should I wait till the PAN Updation process is completed? As per the ITR filing guidelines on the website, we need to verify our personal details very accurately but I've no clue whether which of my name (old or new) should be reflected while filing the ITR.

Can anyone please suggest what needs to be done in this scenario?

Thanks in advance.