Last month Indian Railways has announced 89,000+ vacancies - 26, 502 in Group C and 62,907 in Group D.
Till date about 1.5 Crore candidates have applied for these posts. The last date for applying is 31st March 2018. The exams are tentatively scheduled to be held in April and May.
Source : http://indianexpress.com/article/jobs/railway-jobs/railway-recruitment-2018-over-1-5-crore-registered-for-89000-group-c-d-jobs-rrb-5097652/
Know more about 62,907 Group D vacancies: https://www.time4education.com/local/articlecms/page.php?id=1440
Know more about 26,502 ALP and Technician vacancies: https://www.time4education.com/local/articlecms/page.php?id=1424