Hi Neel,

Loved the way you have framed the question.
"Systematic series of Courses".

Ethical hacking came into the market because of the youngest entrepreneur who devised a code to hacking, " Ankit Fadia".

This course is now running like a blown rage in youngsters.

As far as pursuing this course is concerned, mainly private institutes run this certificate courses which ranges from weeks to 6 months.

To pursue this course, as you have mentioned series,
IT or knowledge regarding programming, languages, software, LINUX etc is the main criteria.
Someone who can understand and play with SYSTEMS would be successful in this course.

Since I do not know your basic qualification, just answering in the dark. You could either pursue, after 12th ( Math compulsory):
B.SC IT ( covers systems completely): A 3 years course after 12th.
BCA. ( Covers software and its applications and part of Systems too, with a lot of practical exposure)A 3 years course after 12th. Few colleges conduct an Entrance exam as an eligibility criteria for this course.

Once you Graduate or if time permits during the course, you can opt for the certifications in Ethical Hacking.
These certifications are generally provided by private Institutes and ranges from few weeks to 6 month.
Check the following Institutes for Ethical Hacking Courses:

• Ankit Fadia. http://www.ankitfadia.in/

• Indian School of Ethical Hacking. https://www.isoeh.com/

• EC-Council. http://www.eccouncil.org

• NIIT. http://www.niitethicalhacking.com

Hope this helps you Neel.

Wish you good luck..........