Lease agreement

Hi

There is a shop near by my home in bangalore , where they prepare the lease document on the fly, They have a franked Stamp paper and having seal to Govt of Karnataka, I asked him about the legality of document and he says , its legal,My Lease Deed is of 3 years , done at July 2014(last year), All I want to know is whether it is required to register the Deed in Sub registrar office, if yes then what is the use of franking the document, Can I register is  now? Experts please help. I am attaching the screenshot of my deed.

Thanks