This document announces an employment notice for the recruitment of constables in the Railway Protection Force (RPF) and Railway Protection Special Force (RPSF) in India. It provides important dates and instructions for the online application process, which is open from June 1-30, 2018. Eligible male and female candidates between 18-25 years of age are invited to apply. The recruitment process will involve a computer based test tentatively scheduled for September-October 2018, followed by a physical efficiency test, physical measurement test, and document verification for qualified candidates. The document outlines the application process, eligibility criteria, pay scale, and stages of examination.