So, i was looking at age of empires on wikipedia and saw a nintendo DS port, but unfortunately it is turn based and i didn't got it.

I searched but i couldn't find one, is there any good RTS for the nintendo DS?

Thanks in advance 

 I recommend the advance wars series.

http://ds.ign.com/index/games.html?constraint.game_genre_name.game_genre_1.game_genre_2=Strategy%3A&constraint.return_all=is_true

^^ Advance Wars it turn-based too. For RTS I'd seriously recommend FFXII : Revenant Wings; though not a hardcore RTS like Starcraft, certainly a quality effort on DS.

Thanks you two, I'll be taking a look at these games =)

Yeah, I'm playing revenant wings now. Its 'ok' - but its not a "real" RTS. I'm actually a little shocked there STILL isn't *any* real RTS for the DS. I'm sure Starcraft or C&C would be possible technically - and would blow sales out of the water.

There was some magic based DS game that has RTS elements - Lost Magic or something similar?

Yeah man, Advanced Wars really is the only one i can think of... and like Shams said, Lost Magic was also pretty cool. Why dont you try GBA games eh??
:P