Thanks for your reply. But not all the fields are account type, below are the list of fields -
Acquisition Date, Account Owner Email Address, Account Owner First Name, Account Owner Last Name, Acquisition Program, Billing Address, Black Listed, Black Listed Cause, Company Notes, Created At, Deleted In Sales, Email Invalid, Email Invalid Cause, Inferred State Region, Urgency, Total Opportunity Amount, SLA Serial Number and many more.
Also I have observed one more thing that, there are many extracted columns which are not present in Lead Database.
like- SAP_CRM_ABCClassification, MicrosoftBillingAddress2 etc.