NPTI or M.E

Dear friends,

I have done B.E in mechanical engineering.I wrote NPTI (National Power Training Institute) PGDC entrance exam.Now they announced second round of counselling on 23.08.2011.I am eligible for this counselling. But, at the same date i have M.E counselling in Anna university, Chennai.Plz say which is best in these two type of courses(NPTI or M.E). If you suggest M.E kindly say which is best course in M.E,Nano science and technology or Aerospace technology? Plz guide me.Thanks.😕