Top 5 Opening Days of 2013 : Boss 5th :-

1) Chennai Express - 33.12 crore (Holiday)
2) Besharam - 21 crore (Holiday)
3) Yeh Jawaani Hai Deewani - 19.5 crore (Non Holiday)
4) Race 2 - 15 crore (Non Holiday)
5) Boss - 13 crore (Holiday)

Boss has just edged out Grand Masti (12.75cr) to enter in top 5 openings of the year. CE, Besharam, Boss were Holiday releases remaining two were non holiday releases.