Hello ! every one !!! I am self depend student, i passed 12 with P.C.M. and want to be telecom network engineer, which have the ability to trace any call to catch any crimnals or tererist. plz help me to build my carrier in this field.

You want to learn cyber security/ hacking etc not networking. Go for a security related curriculum. Wish you the best for your career. Remember, your Career is a resultant of your knowledge combined with your passion and expression ability. If you like this answer you may select it as best answer or

apply for elec and telecomm engineering in any reputed college,then do m.tech in communication systems