The roles and responsibilities of both the postal and sorting assistants are almost same with some minor differences. The Sorting Assistants job is to sort the letter for each area within post office limit (which you are working in).The pay scale is same for both. The duties and responsibilities of Postal Assistant may vary according to the work location.However depending on the workplace the postal assistant have to perform more than one duty.
Generally a Postal Assistant works in Mails, Delivery, Dispatch, Registration, Speed Post, Parcel, Money Order, Sub account, Cash/ Treasury, Accounts and Savings Bank and Savings Certificates departments of a Post office. They are also entrusted additional duties and responsibilities in view of introduction of premium products, other new products and service and technology driven initiatives of the Department.