Fifty years is a very long period. The first 30–35 years – we could call this period as one when India equipped itself to face important problems. For example, we built institutions such as the IITs and the National Laboratories...We need much better infrastructure facilities and we must work on more difficult problems. Unfortunately, we have been used to working on problems that are somewhat repetitive. If we want to be at the cutting edge, we have to be innovators and originators.