Extension of F 1 Visa while on OPT stem extension

This is my friends case. He is currently a post-doc in a reputed university in the feild of chemistry. He is on OPT stem extension and his F-1 expired a year ago. He needs to travel to India. His post-doc univeristy is different from university he graduated.

Is it suggestable to travel ? I never heard of people getting F-1 extension while on OPT.

Commets/suggestions are highly appreciated. Thanks in advance.

Well, it is a tricky situation. F1 Status is typically for education and not intended for work, not sure how someone would give extension for work, when it is meant for education. It is best to talk to the DSO and seek advise.