Employer E-Sewa Overview
Employer E-Sewa is an initiative by EPFO in which employers are requested to register their establishments and create their user ID and password through this portal. After registration, employers can upload the electronic return, and the uploaded return data will be displayed through a digitally signed copy in PDF format. Once approved by the employer, an online challan will be generated based on the uploaded return. The employer may choose to make the payment through internet banking of SBI or take a printout of the challan and pay at any designated branch of the State Bank of India (SBI).
Therefore, there is no need to submit different kinds of forms such as monthly (12-A, 5-10, etc.) and annual (3-A, 6-A).
E-Return Tool (Version 4)
On the other hand, the E-Return Tool (Version 4) is designed to help you prepare the above ECR format. It is just like software provided by EPFO to maintain and generate data for contributions towards EPFO.
Hope this clears your doubts.