What is the difference between OPT and CPT if go to USA for study and work ???? Can u guide me plz?

You can find the relevant details at http://home.moravian.edu/public/intstud/intlstudiesoffice/students/intstudents/current/opt-cpt.htm

Hi, CPT is work authorization which allows a student to work in a job directly related to the student‘s major area of study before degree completion. CPT is granted within 5 days of application submission. On the other hand, OPT is work authorization which allows a student to work in a job directly

Hi Kanika, OPT is Optical Practical Training. It is a period during which undergraduate and graduate students with F-1 status who have completed or have been pursuing their degrees for more than nine months are permitted by the United States Citizenship and Immigration Services (USCIS) to work for