how to override standard list view page

Hello Uday,

You can create a VF page.

Step 1: Create a VF page using the code below

<apex:page standardController="Your_Object_API" recordSetVar="x"
action="{!URLFOR($Action.Your_Object_API.List,$ObjectType.Your_Object_API)}" />

Step 2 Go to: Setup > Customize > "Your_Object" > Buttons, Links and Actions or Setup > Create > Objects > "Your_Object" > Buttons, Links and Actions or Setup

Step 3: Edit the "Your_Object" Tab link

Step 4: Override the "Your_Object" Tab with a VisualForce Page you created