Please follow http://www.uscis.gov/working-united-states/temporary-workers/h-1b-specialty-occupations-and-fashion-models/extension-post-completion-optional-practical-training-opt-and-f-1-status-eligible-students-under-h-1b-cap-gap-regulations.

Please follow http://www.uscis.gov/working-united-states/temporary-workers/h-1b-specialty-occupations-and-fashion-models/extension-post-completion-optional-practical-training-opt-and-f-1-status-eligible-students-under-h-1b-cap-gap-regulations.