Software Development And Marketing In Nigeria, How Can We Start It?

Simple,

Do your homework on what package you can put out there that will add value to the society at large.  Something either an individual or government can't do without.  Then get some cool nollywood celeb to run a few advertisements for you on radio and tv.

Of course, at that point, just make sure you have the resources to meet demand, because it will def sky-rocket.

Good luck!!