Gujarat-based Navsari Agriculture University has standardised a process of manufacturing high value paper from banana fibre, which it claims can be used to make currency notes that last for about a century. B N Kolambe of the University said, the paper has been tested in the Central Institute for Research on Cotton Technology. He said, during research it was found that the paper made out of this fibre has shelf life of over 100 years as it is the strongest of the long fibres ever found among the natural fibres. Moreover, it can be folded as many as 3,000 times. In the present set up, Security Printing and Minting Corporation of India Limited imports very high grade quality cotton rags and pulp to manufacture the paper required for currency notes. Japan uses banana fibre to manufacture the paper required to print its currency Yen.