I am pursuing my MBA(Telecom). I would like to start my career as Telecom-IT Business Analyst. I've done my Electrical Engineering and worked as a RF Engineer for around one year. 

With no technical knowledge of IT, can I start my career as BA? What are tools and methodologies that I need to be aware of? Do big companies like TCS, Infosys, Mahindra Satyam recruit guys like me for the BA profession? If i've to get the edge over others, how do i need to prepare?

Please provide me your valuable suggestions. It will be of great help. Thank you