221g issued against J1 asked to submit passport only in vfs passport came back unstamped.

My wife had been issued 221g blue slip in which she was asked to submit only passport in vfs centre she had submitted the sameon same day after three working days her passport came back unstamped with same blue slip kept inside the passport. Does it mean denial. She appeared on 11August 2016 and passport came back on 17August 2016. Is there any hope. While checking status it shows administrative process.