Goalkeeper Kristof Van Hout joins the celebrations after Manish Bhargav makes it 4-1.It was wall of noise at the Jawaharlal Nehru Stadium in New Delhi as the Delhi Dynamos signalled their intent in the Hero Indian Super League with a resounding 4-1 win over Mumbai City FC.It was a cold crisp evening in Delhi and the hosts took all of 44 minutes to warm up the attacking engine.Sustained pressure from the flanks and Hans Mulder made the most of an unclaimed ball in the box and Delhi took a handy 1-0 lead to the half-time interval.The second half was the Gustavo dos Santos show. The 20-year-old Brazilian ran rings around the Mumbai centre backs with his samba moves.He provided the pass to Mads Junker inside the box which lured the keeper Subrata Paul from his line and turned in a smart finish to double the advantage.Bombay were hapless in possession and had no answers for a revitalised Delhi led by the Brazilian wonderkid and captain Mulder.It was soon 3-0 as Gustavo started a move with Francis Fernandes overlapping him, as he did all night, receiving the ball and lobbing it back into the box where an unmarked Gustavo was there to finish the move with the easiest of headers.The visitors did pull one back through 34-year-old debutant Abhishek Yadav in the 82nd minute.Delhi now rocket to fifth in the league, with 13 points with two wins on the bounce and face Atlético de Kolkata on December 2.