Finally my site back in SERPs and getting good 40-50 visitors now. I just did build links around my niche blogs by doing commenting and also do updated blog with unique content everyday! I am glad that I am rid off sandbox within 1 months.
First, congrats to you and then i wud say that you didn't have any sandbox effect. It's just part of google rankings and i had these experiences many time. From my side i don't believe in sand box. I think you now understand wht u need to do in such conditions?
Well I had no ranking issue since I got good ranking from day-2 but I lost all my rankings including my Blog title which was ranked#1 that time but due to quality content I got all my rankings back with better results now!