Thanks a lot acchabacch for a nice reply.., yes as u mentioned i will make a initial agreement with the partner and detailed about the responsibilites on each side has to take on an unsuccessful case, because I am only expert on my field but has no enough money to invest, this business is not a new product, (but ofcourse i will be introducing a new product in the ,market soon after started,), but one promise I will give him about my hard work,... hope everything will go fine...