The recruitment process in the Indian Air Force under the Agnipath scheme got underway on Friday with the opening of the registration window, a week after violent protests rocked several states."Registration window to apply for #Agniveervayu is operational from 10 am today," the IAF said on Twitter. Unveiling the Agnipath scheme on June 14, the government had said youth between the ages of 17-and-a-half and 21 years would be inducted for a four-year tenure, while 25 per cent of them will be subsequently inducted for regular service.