As of today at Spicejet there are no expat F/O's. Only expat Capt's on the 737NG with previous NG experience and/or EFIS/NG conversion endorsements.
Spicejet has a cadet entry program as well as direct entry for other qualified Indian F/O's. I have been told that F/O manning is more than sufficient. So much so that some F/O's are being contracted out to Oman Air for 1 year.
Perhaps some other carriers have a need for expat F/O's at present.