hi,

see there is several branches of engineering , however all stream has their distinct job scope and career options. right now people are focusing more on computer science domain since it has good job prospect in todays market. however its not that other courses of engineering has no value, a world can not imagine with out the electrical power or mechanical strategies to make life more easy or comfortable. so you have to select the course as per your interest which is quite difficult to relate for a 12th pass candidates. however the major and core engineering streams are,

mechanical engineering

electrical engineering

civil engineering

electronics and communication engineering

computer science engineering

above mention streams are core stream and you may do specialization on other related stream once you completed your bachelors.

however electronics and communication engineering is next most sought stream right after cse.

hope it would help.