Those red wires were making it look shabby. Finally I found SGVA extension cable.
Its the wire which we use for connecting Computer monitor to CPU. It has 15 pins.
I cut the female part out-
And then found this 8"x6"x3" project box. That kitchen ziplock container was not an appropriate container to house my DIM4 controller.
And then housed everything inside it. Cut some spaces for air circulation-