Whether New PAN to be applied if PAN has been issued under wrong nature of Person?

Please suggest the course of action to be taken in the following case:

Assessee is a Cooperative Credit Society which was formed around in 1956. While the PAN was issued in the name of this CoOperative Society, whoever done this, mistakenly put the nature of person as COMPANY! And with this PAN only GST Registration had been obtained. 

Now, how to rectify this mistake? Whether a new PAN to be applied or any other way is there? And what will be the consequences with the GSTIN if new PAN to be applied?

Thank you