GATE Electronics and Communications (EC) 2019 Solved Paper

$\nabla \cdot \overline{\mathit{D}}={\mathit{\rho }}_{\mathit{V}}$
This is Gauss law
$\nabla \times \overline{\mathit{E}}=-\frac{\partial \overline{\mathit{B}}}{\partial \mathit{t}}$
This is faraday law of electromagnetic induction
$\nabla \times \overline{\mathit{B}}=0$
This is Gauss law in magnetostatics which states magnetic monopole does not exists.
$\nabla \times \overline{\mathit{H}}=\overline{\mathit{J}}+\frac{\partial \overline{\mathit{D}}}{\partial \mathit{t}}$
This is modified form of ampere's circuital law.