If you are thinking of doing MBA in the US, you need to have at least 2 years of work experience to even apply to the universities there. However you can do so in India. MS and MBA take you in two different directions, the former leading you towards a career in technology and the latter into general management career. If technology is your forte you are more suitable to do MS. An MBA in India from a reputed institute could be more cost-effective and offer more assurance of placement.