This certificate shows that a person owns the property fully, is not subject to any encumbrances, and has the authority to transfer it. It can also be used to make a sale or transfer a proprietorship. It can be obtained by logging on to the IGRS AP - web portal and entering the relevant information. Igrs Ap Encumbrance Certificate (ec) Is An Important Document That Proves That A Person Is The Owner Of The Property The next step in the application process is to register on the IGRS AP web portal. Log on to the portal and click on the EC Search menu item. Then, click on the registration option and fill in your personal details. If you already have a user ID and password, you can use your existing credentials to log in. After logging in, you will be taken to a form where you can enter all the relevant information. After you have registered your property on IGRS AP, you must enter details about the market value and the amount of duty fees you will pay. Once you have entered all of the details, you can click the Calculate button to find out how much you will pay for the registration, stamp duty, and transfer duty. There are also calculators available on the IGRS AP website.