Which is better aircraft maintenance engineering or BE aeronautical?

If you mean Bachelor of science or Master of engineering than they would be "better". Aircraft maintenance engineering is basically a technology degree worth less than a science degree.

I personally suggest you don't go for both. I had met my educational counselor for my career purpose. I was very interested in Aerospace and aeronautical engineering. I think 10 times more then you. The thing is that if you are in India then there is no point doing it. The scope in it is very very less. Its probably because of some oil crisis and stuffs like that all aeronautical engineers will have to suffer a lot. And there is no point going in some field which is good now but does not have long term fulfillment. My personal feeling is that we should never work or do a job under someone. This makes our progress very much biased. We should always do business. Even though small initially but our intelligence can take it to a very long place. And going into aeronautical engineering is like always working under someone, Because the investment required in it is in million dollars and there are many more multinational companies which are presently best, and reaching at their level will be practically very tough. Why dont you go into Electronics and Telecommunication. It is a superb field and with lots of scope. I am in position to tell you such things because I have met a career counselor. If you need any more help and would like to be in contact then surely email me. Best of luck.

BE WOULD BE BETTER