An online application form will be out on 21st April for ssc cgl tier 1 exam.
You can get all the related updates here at Examsbook.com

Exams Date:
https://www.examsbook.com/ssc-cgl-notification-Tier-1-Tier-2-Exam-Date-Calendar

Application forms:
https://www.examsbook.com/ssc-cgl-online-application-form-apply-online

All the best.!