am a bca final year student, am very much interested in ethical hacking should i join mca or should i do any ethical hacking courses?

You can do a Programme In Information Security Management which is of 1 year. www.mielesecurity.com You can check out this link. It totally depends on your interest which field you want to pursue.

MCA will fetch you a degree and makes you eligible to apply as System Analysts, where as ethical hacking is too specialised and a certificate program. It can be pursued along with your MCA program to enhance your prospects in the job market