We were using switching regulator and when we turned on the regulator short was found.
Your SWH1.. are switching outputs of your regulator; you really must not put the capacitor where you put it:
Instead of rapidly switching the current through the inductor, you'd guarantee the current change is always limited by the capacitor. That is the literal opposite of what you want in a switch mode supply!
Of course this means you'd have a very very high AC component through the capacitor, with the potential for damaging it.
You probably wanted to put the capacitor on the other side of the inductor? Consult your regulator's data sheet for reference circuits.