urgent ! Can one change from s&fire to mech. after first year, which would be a better choice based on placements & jobs in the long run,is private job of s&fire engineer good? of what kind of a job is that of a s&fire officer,would it be exhausting?are there sufficient high salary job in north india for s&f in psu or private, are there more options for better jobs in s&f after doing mba?