Renaming of Portfolio name in treasury

Dear Treasury Gurus,

I'm working with Insurance related client where they need to rename the portfolio name as per recent IRDAI notification.

Investment in prompter group companies should come under the portfolio name "EDPG" Earlier it was created under "EPBT"

Therefore now client want to change portfolio name from EPBT to EDPG.

Where when I checked the portfolio name EDPG already created now they need to replace the portfolio name to EPBT to EDPG.

I'm not sure where I can figure it this.

Please provide your valuable inputs.

Thanks,

Prasad