Hi @swapnilsoni  , 

I have recently done this type of requirement , let me walk you through what i have done

i have created a my custom approval policy , on assess state , giving approval to specific group 
based on the conditions , 

In the Change approval flow 

Flow name : Change - Emergency - Assess

i have added one more step here 

and the overall flow looks like

You can refer to the above flow and feel free to ask for help

please mark my solution as accepted if your issue is resolved

Thanks regards

Badrinarayan