Printed circuit boards (PCBs) hold the circuitry that drives computers and electronics. Aircraft, wind turbines, cars and toys are among the many machines and products that use these boards. A printed circuit board designer is an engineer or technician who specializes in electronics and understands the technology behind PCBs. An associate’s degree in drafting and design technology, engineering technology or similar field is required; employers may prefer candidates with a bachelor’s degree in electrical or computer engineering.
Coming to the internship levels for the PCB designing, he/she can join any company as an intern and work with them for a certain range of months during their study period as the will get an hang on idea about their work.
· Joint Entrance Examination (JEE mains):
This exam is an national level exam to get admitted for the institutes of NIT's, IIIT's and all other colleges too.. as to get admitted for the Btech computer science engineering courses. This exam is widespread and each student must prepare hard from Class 11 with science course till their examinations.
· Joint Entrance Examination advanced (JEE advanced):
This exam is also conducted to get admission for Btech Computer science courses but to join only for IIT’s. This exam can be attempted only if the candidate clears JEE mains exam.
· Gradual Aptitude Test in Engineering (GATE) Exam:
The Graduate Aptitude Test in Engineering is an examination conducted in India that primarily tests the comprehensive understanding of various undergraduate subjects in engineering and science for admission into the Masters Program and Job in Public Sector Companies.
These are the 3 main exams and also other State level entrance exams are also conducted to secure admission for these computer science courses.
https://manipal.edu/mit/program-list/btech/btech-computer-science-engineering.html
etc. and many colleges in India offer programming courses.