Hi, I know am too late to answer this question, but still I will answer your question. You need to register at ICAI, the last date was 2nd April 2017, once you register then you are eligible for appearing for CA CPT June 2017 exam. If you are planning for revision then you can visit here
caprep18 as they are associated with India's No.1 CA Coaching JK shah classes. They are running a rapid revision course batch from 4th June 2017, which is at just Rs.499/-, you can grab this offer and clear your CPT June 2017. Good Luck...