This afternoon I got the letter of travel authorization from DHS. Many of you might remember that I have already received EAD approval which I wrote in another TPS related thread few days back. I have also applied for replacement of my social security card following suggestions from Sajha TPS gurus like Mangale and Biomed. However, my application for TPS is still pending. When I check my case status in USCIS website it says fingerprint fee is accepted. The travel authorization also says TPS has not been granted yet.

I am in F-1 status continuously since I entered US and have not done anything serious that can draw attention of immigration officers (like working off campus using my social). So I am thinking to travel to Nepal with this travel document and get someone mailed me TPS approval later. Could you please suggest me how wise is this idea ? 

I have also posted my travel authorization letter. If you can extract more information from this please let me know about that.