There has to be commercial phase protectors available in India. They are really common in the US.
Generally I used them to protect EXPENSIVE stuff like a $5,000 USD roots blower and protecting devices such as Cryochillers such as this one: **broken link removed**
It was also used on some 3 phase vacuum pumps. An aprox $100 USD device was very worth much it. It easily fit into the relatively large motor control disconnect, overload relay and contactor. Later, the overloads were replaced with solid state units when they failed after 15-20 years.
If your lucky, the solid state overload relays will have built in 3-phase protection so the extra box isn't required.