Project Topic Selection

We got our project in TAFE Pvt Ltd, me and my friends were bursting with joy for getting an opportunity to work in R&D. But we had no idea on what we are going to do our project. So I gave a call to the HOD of TAFE R&D, and he gave me a wide choice of topics to select from. We narrowed down to two topics, one on "Designing Gear Box for Combined Harvester" and the other was "Designing Central POD for 4wd Tractor". We found both the topics to be interesting, but the 4wd tractor was completely new for us, and led us to select it so that we can learn the unknown.