See for BCA, it is usually state centric as most universities and colleges offer it. Universities like SRM and VIT offer them too. As for MCA, the NITs offer them through NIMCET which is the entrance test. As for salary, I cannot predict that. It will depend upon the placement you get after you graduate. MCA candidates are paid good sometimes on par with Engineering graduates. Computer Science is one such field that requires constand updation with the latest technology. It is also a field where after a certain point, your knowledge and experience will count more than the degree. 

If you wish to puruse BCA, tell us which state you belong to and where all you probably would be interested so we could get back with relevant information.