Neha, the “drips” appear to me to be made of fondant, cut out and rolled to look like a spill. To make gold, I start with an intense yellow fondant and paint with gold airbrush color, then dust with gold luster dust – I use CK Imperial Gold.
I am thinking that you could also use melted chocolate (use white chocolate tinted yellow) and pour over the top of the cake letting it drip down the sides. Once it has harden, it can be tinted the same as the fondant.
Sugar Sugar by SSmiley
