Your need
If you are in the final year of BE, B Tech. ME, M.Tech Engineering then you are just now getting ready to your Projects somewhere in research lab or industry.
Your plan
Identify your areas of interest on the basis of your course studies, practical experience and mentor guidance. You can also explore few new areas of technology by looking at news from NASA, NRC, NSF, DST and also newspapers. Once idea is frozen out, then go for your plan and discuss with your menotor.
Plan your time and funds
It is unlikely that your research will be free of cost as it needs material and precious time of someone. Plan the required funds needed to buy the essential, travel, caual things like lunch and tea, documents, zeroxing charges, internet and phone bills. If there is fee for project training then discuss it clearly and plan it.
Experimental
These area of research are mainly experimental and you develop hardware, wrie software programs, test the developed hardware and collect experimental resealts, analyze the data, discuss with experts and come to some conclusions about your research.
Thesis / Desertations
You then prepare yur research thesis and present it publicly.