How person account is different from standard account in salesforce? How can I enable person account in Developer edition ?

Hello Pranav,

To enable person account we have to use Customize Application

Before you begin, make sure to:

• Create at least one record type for accounts.
• Grant read permission on contacts for profiles that have read permission on accounts.
• Ensure that the contact sharing organization-wide default is set to “Controlled by Parent.”

Once you complete the preliminary steps, contact Salesforce to enable person accounts and then:

• From the object management settings for person accounts, go to Record Types.
• Assign person account record types to profiles that require person accounts.