Ajit, I used the podcast episodes that earned PDUs for renewing my PMP as well. Make sure you use the spreadsheets Cornelius has for properly classifying each session & keep notes on interesting items from the sessions in the event PMI audits your recert submission.
Cornelius has pages for the episode list, PDU credit classification taxonomy, and what you need to include on your PDU submissions to PMI.
You have 365 days where your PMP is still recoverable, but don't delay in getting the PDUs as you are technically already in your next 3 yr reporting period. And I don't know about you, but I would prefer not having to experience the PMP exam a 2nd time. One and done is good enough for me, and as long as PMI allows me to recert my PMP I shall (even if it gets suspended and reactivated like a Phoenix rising from the ashes). Highest & Best,
Patrick (PMP, CSM, ITIL ... and one day soon ACP)