Yes I did talk with my DSO and they told me that if I don't want to maintain F-1 like full time student then they will terminate my F-1. And also they have informed that even with TPS, I can join college. Recently, I have requested DSO to update my SEVIS about approved TPS and eligible to work which they have done it. Working fine with me. Next phase, I have to wait till my graduation Spring 2016 and have to see whether I can apply for OPT or not.