New Delhi, Feb. 25 -- Ensemble comedy Total Dhamaal has notched up the highest opening weekend of the year so far making Rs. 61 crore in box office collections over three days. The Ajay Devgn, Madhuri Dixit and Anil Kapoor-starrer beat the Rs. 50.71 crore earnings of last week's release Gully Boy that also had the advantage of the Valentine's Day holiday period. Clearly, it has also beaten the Rs. 45.05 crore business of Double Dhamaal (2011) and Rs. 32.51 earnings of Dhamaal (2007)....